TW296995B - - Google Patents

Description

A7 B7 ------- V. Description of the invention (1. Scope of the invention _ The present invention relates to a multi-layer structure, such as pipe fittings, which is suitable to replace the conventional poly-vinyl chloride (PVC) pipe fittings, but there will be no accompanying PVC Environmental and health hazards of materials ° Background of the invention The tube # 'based on polygas WPVCH is used in many medical products. However, PVC is considered to be hazardous to the environment and personal health. The incineration of PVC will Causes the release of hydrochloric acid (Ηα), and PVC is regarded as the main contribution of HC1 in the flue gas of incinerators. Moreover, it is suspected that pvc contributes to the formation of multi-gasified two-piece dioxirane during incineration Compared with squeezing toxin. When compared with Yushi's waste stream, the level of these toxins in medical infectious waste is up to three times greater. Except for incineration concerns, exposure to phthalic acid di-2 · ethyl Hexyl ester (DEHP), which is a commonly used PVC agent, may have many health-related concerns, including lowering blood pressure and potential connections leading to liver cancer. Regardless of these concerns, PVC is a pipe fitting And the objects they constitute continue to become subjects And materials selected for medical applications. See, for example, Polymer Science ¥ jl · Technology 100_ 科 全书 'Vol. 17, page 50 (1 9 8 9). Continue to use PVC materials, at least part of Since the attractive products of PVC include flexibility: dynamics: for UV light, solvents, cuts, scratches and acids (resistance, transparency or opacity, as required: and low cost, in addition, PVC < The properties can be modified by adding various additives, such as plasticizers, colorants, etc. For example, U.S. Patent No. 4, 2 9, 8, 7 I 4 discloses a modified pvc material with reduced hydrophilicity. Thanks to pvc tun 4-

Therefore, Zhang Shizhi is suitable for financial management-^ T ^ iT2I〇'x29W (please read the notes on the back first and then fill in this page) * ^ τ Printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative Printed by the Ministry of Economic Affairs Printed by cooperatives A7 B7 V. Description of the invention (2) Add various thiol-based compounds to the chain. Its chemical thermoplastic polymers have been used to form single-layer pipes. For example, low-density polyethylene, high-density polyethylene, polypropylene, ethylene vinyl acetate, and polybutene have all been used to form single-layer pipes. See, for example, the Encyclopedia of Polymer Science and Technology, Volume 17, page 50-5 I (1989). However, none of these polymer materials have been successfully used to provide pipes with the advantageous properties necessary to serve as environmentally compatible substitutes for PVC substrates. 3 Multilayer pipes using different polymers in individual layers have also been used. Was developed. In detail, this multi-layer tube allows the aforementioned incompatible materials, such as P V C and ethylene vinyl acetate copolymer (E V A), to be combined together. For example, U.S. Patent No. 4,70 7,3 8 9 discloses a multilayer tube composed of an outer layer of EV A and an inner layer of PV C and bonded together by an adhesive layer. In addition to being continuously environmentally incompatible, this pipe fitting is prone to delamination during continuous use. To avoid the problem of delamination, U.S. Patent No. 3,56,493 provides a multi-layer tube in which the inner layer and the outer layer are welded together by a pre-grinding layer of two different polymers. However, gas-containing polymers, such as PVC, are still considered for use in this type of fitting. To date, there are no advantageous properties that can provide PVC materials, and they do not contain historical records; considering the pollutants and environmentally compatible multilayers Tube exists. Therefore, there is still a need for an environmentally compatible multilayer tube that can be used on a wide range of medical and non-medical products, and that it can be used as a substitute for PVC substrates. In detail, PVC replacement pipes are still needed, which are flexible, kink resistant and tough (meaning scratch and cut resistance), as well as solvent and UV light resistance, which are transparent or opaque as needed, And can be relatively low cost __ This paper standard is applicable to the Chinese National Standard (CNS) A4 specification (2! 0X29 ^ f) (please read the precautions on the back before filling in this page) Order the Ministry of Economic Affairs Central Standard Falcon Bureau Employee Consumer Cooperative Printed A7 B7 V. Invention description (3) Made. SUMMARY OF THE INVENTION The present invention is directed to a multi-layer tube having a tube hole, a tube wall composed of multiple layers of thermoplastic polymers, and outer and inner wall surfaces. The wall layer includes at least one inner layer and one outer surface layer. The inner layer serves as the flexible core of the tube wall, and in the preferred embodiment forms the main part of the wall thickness. Other layers than the inner layer, such as the inner surface layer and the inner layer, may also exist. When the tube wall is composed of at least two layers, the inner layer forms the inner surface of the tube wall and becomes a flexible core of the tube wall. This inner layer is composed of at least one gas-free first thermoplastic polymer, or a mixture of such thermoplastic polymers, or a mixture with other substances and polymers. The outer surface layer is composed of at least one gas-free second thermoplastic polymer, or a mixture of such thermoplastic polymers, or a mixture with other substances and polymers. The selected inner surface layer is composed of at least one gas-free third thermoplastic polymer, or a mixture of such thermoplastic polymers, or a mixture with other substances or polymers. The other inner layer may be composed of at least one of the first, second, or third thermoplastic polymers, or a mixture of such thermoplastic polymers alone or with other substances and polymers. The flexibility of the first thermoplastic polymer is simulated or greater than the polyethylene gas used to manufacture medical tubing = specifically, it has the flexibility to substantially achieve the function of the tubing, covering the range from flexing and being pushed through The ability to bend the lumen of the body part until it is made into a sharp curve without causing creases in the cross section. The creases will stop the flow of fluid or air through the hole of the tube -6-(please read the back Matters needing attention and then fill out this page. The paper size is applicable to the Chinese National Standard (CNS) A4 (210X 297A). The A7 B7 is printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. V. Invention Instructions (4). The first thermoplastic polymer has flexibility measured in Young's modulus and is substantially simulated or lower than polyethylene gas for medical tubing. Preferably, the first thermoplastic polymer has a Young's modulus range It is about 2 to about 60 MPa (million Pascals), more preferably about 10 to about 40 MPa, and particularly preferably about 15 to about 30 MPa. The second thermoplastic polymerization system is toughness, and Has a substantial simulation for medical treatment The wear resistance of the polyethene hooves used in the piece 3 has a Young's modulus up to about 15 times that of the first thermoplastic polymer. This ratio is preferably up to a maximum value of about seven times, A more preferred range is from approximately equal to the Young's modulus of the first thermoplastic polymer, up to about three times it. Especially preferably, this ratio is greater than the Young's modulus of the first thermoplastic polymer, up to About three times. The Young's modulus range of the second thermoplastic polymer is preferably about 15 to about 300 MPa, more preferably about 20 to 50 MPa, and even more preferably about 20 to 4 5 M P a 3 The third thermoplastic polymer has the same characteristics as the second thermoplastic polymer. The chemical identity of the two polymers can be different. Any thermoplastic polymer with the above characteristics is suitable as the first and second Two or third thermoplastic polymers are used. Generally speaking, the first, second and third thermoplastic polymers have a main chain of any configuration and chemical structure, which can maintain the aforementioned characteristics and multilayer tubes Thermoplastic during formation. Main chain configuration includes but not For linear, cross-linking, branched, random, jointing, block, crystalline-amorphous sites, pseudo-crosslinking and ionic bonding. The main chain chemical structure includes polyhydrocarbon, polyester, polyamine Carbamate, Polyethylene glycol, Polyacrylate, Polymethacrylate, and Polyvinyl Substitutes-7-Wood paper scale is applicable to China National Standard (CNS) A4 specification (210X297mm) (please read the back Note and then fill out this page to print the 2G6 secret at B7 printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. Invention description (5), such as vinyl acetate S. Preferred thermoplastic polymers include polymers of hydrocarbon monomers, And copolymers of hydrocarbon monomers and substituted olefin monomers. Very good hydrocarbon hydrocarbon monomers include C 2 to C 4 monounsaturated olefinic hydrocarbons, and particularly good substituted hydrocarbon hydrocarbon monomers include C 4 to C 1 4 monounsaturated olefinic hydrocarbons, C 8 to C 1 4 aryl hoof hydrocarbons and C 2 to C 6 monounsaturated hydrocarbons, which have a group selected from 1 to 6 alkyl alkoxyalkyl groups, The part of the base, diacetamide and oxycarbonyl. The use of this thermoplastic polymer as the first, second or third thermoplastic polymer depends on (but not limited to) the following, and the percentage of substituted hydrocarbon monomers present in the polymer The degree of regular molecular orientation achieved by the polymer, the percentage of crystallinity, the degree of cross-linking, the degree of pseudo-cross-linking, or the degree of ionic bonding that are present, through the three-dimensional rotation of the main chain by the chemical main chain structure Degree, and the nature of the monomers that make up most of the polymerized units in the polymer. By combining the individual edge and abrasion resistance characteristics of at least the first and second thermoplastic polymers, the multilayer tube of the present invention has a wall outer surface that exhibits brittleness and protective properties, and a compliance and resilience Wall core with properties such as elasticity and sintering. In collaboration, the wall layers provide a multi-layer tube that has approximately the same flexibility, resilience, and resistance to kinking / rekinking as the P V C medical tubing, and exceeds its characteristics in the preferred embodiment. The wall layer also provides a multilayer tube with the same durability and scratch / abrasion resistance as P v C medical fittings. This multi-layer tube can have several configurations, including two layers, three layers and more (general t three) to see the configuration. In the two-layer configuration, the outer surface layer covers the inner slide. The inner layer of this configuration forms the inner surface of the tube wall, and also serves as the wall -8- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (?: (VX 297mm) (Please read first Note on the back and then fill out this page) A7 B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description (6) Core. In the three-layer configuration, the second and third thermoplastic polymer systems are individually The outer and inner surface layers are formed, and the first thermoplastic polymer system forms the inner layer, which is a core 3 serving as a wall. Other configurations, such as a five-layer configuration, are also within the present invention. In these configurations, the first A thermoplastic polymer system forms one or more inner layers, which serve as the core of the wall, while the second and third thermoplastic polymers form the inner and outer surface layers. When the multilayer tube of the present invention is burned or When degraded in other ways, it is preferable that it does not release harmful chemicals, such as vaporized hydrogen, into the atmosphere. This multi-layer tube can also be used safely and effectively in medical applications. It is preferably in at least the wall In the layer on the inner surface, Contains plasticizers or other components that can be filtered or exuded because they will contaminate the fluid. Specifically, at least the first and third thermoplastic polymers do not contain Si; esters or citrates or other plasticizers Agent, and contains no or substantially no additives that can be leached into the fluid. The multi-layer tube preferably also has the ability to avoid absorption of solvents, drugs, medicaments and other substances that will come into contact with the tube. When the tube is used as a medical This property is particularly desirable when using tubing. In this application, the layer that forms the inside surface of the tube wall shows the minimum or no absorption of drugs, pharmaceutical carriers, or other medical fluids. Depending on need, The layers of the tube can be composed of thermoplastic polymers, which make the layers resistant to acids, solvents, UV light, and make the tube transparent or opaque or colored

D The present invention is also directed to a method of manufacturing a multilayer tube. According to this method, at least one flexible, gas-free first thermoplastic polymer and at least one tough, gas-free second thermoplastic polymer are co-extruded into the tube wall_-9- 本The paper scale is applicable to the National Standard of Ten S (CNS) A4 Specification 710X 297mm) (Please read the precautions on the back before filling in this page) Order A1 B7 5. Description of the invention (7) At least the inner and outer surface layers. Other thermoplastic polymers, such as the third thermoplastic polymer, can be co-extruded to form other layers of the tube wall. The co-extrusion conditions of pressure and heat will cause the thermoplastic polymer to become a melt, so that it will co-extrude into a seamless joint layer of the pipe wall. Preferably, after the multi-layer tube is formed at the common die outlet, it is passed through the cooling fluid. During the formation and cooling of the multi-layer tube, air or another gas can be passed through the tube hole of the multi-layer tube, so that the tube wall does not sink into the overall ° Brief description of the drawings It is a multi-layer tube with a two-layer wall structure. Fig. 2 is a cross-sectional illustration of a second specific embodiment, which is a multi-layer tube with a three-layer wall structure. Figure 3 Series A is the square plan view before "Kink-0-Meter". Figure 3 B is a side plan view of " Kink-0-Metei ". Figure 3 C is a plan view of the "Kink-0-Meter" in use. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Figures 1 and 2 show Invented cross-sectional illustrations of two alternative specific embodiments of multilayer tubes 10 and 20. Figure 1 shows the first specific embodiment of multilayer tube 10, which has a tube hole 16 and a gas-free first thermoplastic The inner layer 12 of the polymer is covered by the outer surface layer 14 of the second thermoplastic polymer without gas. Figure 2 shows a second specific embodiment of the multilayer tube 20 according to the present invention. This specific embodiment Including tube hole 28, inner layer 22 of the first thermoplastic polymer without gas, sandwiched between the second thermoplastic polymer without gas, the surface layer 24 and the third thermoplastic polymer without gas The inner surface layer of the body is between 2 and 6 _-10-_ This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) A7 B7 printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 8) In Figure 3, the test is used to measure the kink and Test device for kinking resistance 1 1 0 (K ink-0-Mete 1 · (Kink-0-meter)) 3 test device 1 1 0 includes the lower plate 丨 2 Ο, which has a lip along one edge Part 1 2 2. Two bolts 1 3 5 are loaded on the lower plate 1 2 0. An upper plate 1 3 0 with a lip 1 3 2 along one edge and two slots 1 3 4 is loaded The sliding connection with the lower plate 丨 20, in which the bolts 1 3 5 are assembled in the two slots 1 3 4, causes the lips 1 2 2 and 1 3 2 to be arranged parallel to each other. A pair of wing flap nuts 1 3 6 (Figure 3 Β) is loaded on the bolt to provide a proper amount of sliding resistance between the lower plate 1 2 0 and the upper plate 1 3 0. The mark read against the edge of the upper plate 1 3 0 1 4 0 is provided on the lower plate 1 2 0 to quantify the results. The range of the number 1 4 0 is from 3.4 when the lip of the plate is fully closed to when the lip of the plate is fully open (In other words, the separation distance is 3.8 cm) 1.2. Detailed description of the invention The multilayer tube of the present invention has physical characteristics very similar to polyethylene gas medical tubing 3 In addition, this multilayer tube is a ring It is safe and avoids the disadvantages of polyethylene gas fittings related to medical treatment, medicine and health as mentioned above. The wall of this multilayer pipe is made of multiple layers of thermoplastic polymers. This multilayer provides composite properties, So for many uses, the pipe wall simulates P VC, and in a preferred embodiment is better than P VC. The minimum number of layers of the pipe wall is two: an outer surface layer and an inner layer. Most of the thickness is preferably provided by the inner layer. This layer acts as a wall core to provide multi-layer tubes with features such as prism and resilience. Other layers, such as outer table -11-This paper scale is applicable to China National Standard (CNS) Α4 specification (2 丨 0'297297) Printed by staff consumer cooperatives A7 B7 V. Description of invention (9) Surface layer, and in the wall configuration of three or more layers, the inner surface layer provides toughness, tensile strength and wear resistance to the pipe fittings. These layers It is usually thinner than one or more flexible core layers that make up the wall of the tube, so that its physical properties do not dominate the compound properties of multi-care. 3 Physical properties Toughness and resistance to wear and cuts, and high flexibility , Is an important physical characteristic for medical tubing. Medical tubing is preferably able to overcome the long-term friction of medical instruments such as irrigation pumps and friction parts. It is also preferably highly flexible, so that it can be made into tight coils and bend Tubes, which are important for catheter formation and delivery tube applications. Thermoplastic polymers that are knife-shaped and wear-resistant are typically not sufficiently flexible for use in such medical tubing. Highly flexible heat The polymer is typically not tough enough for use in such medical tubing. Therefore, until the present invention, a multi-layer tube has not been developed, which shows agility, significant tensile strength and wear resistance. Plus flexibility and resistance to kinking / rekinking. In particular, a multilayer pipe that simulates PVC medical tubing has not been developed. According to the present invention, a multilayer pipe has been developed that has flexibility that simulates or exceeds PVC 、 Kink / re-kink resistance, tensile strength, abrasion resistance and abrasion resistance Formed by the first thermoplastic polymer, and an outer surface layer formed by at least one tough, gas-free second thermoplastic polymer 3 When the pipe wall contains three or more layers, there is also one The third type from at least one kind of vigorous, gas-free -12-This paper size is suitable for China National Dragon (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page

* 1T A7 B7 printed by the Employee Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs V. Description of the invention (10) The inner surface layer formed by the thermoplastic polymer. One or more optional layers formed from at least the first, second, or third thermoplastic polymer may also be included in the tube wall. Although a thermoplastic polymer is preferably used for a wall layer, such a layer may also be composed of a physical mixture of thermoplastic polymers. In order to achieve the aforementioned characteristics, this multilayer tube system incorporates at least the following parameters a to c, and preferably also incorporates the remaining parameters 3 a. The first thermoplastic polymerization system has a flexibility that simulates or is greater than polygaseous ethylene medical tubing. More specifically, the first thermoplastic polymer system has the flexibility necessary to achieve the deflection function of the tube, ranging from the ability to flex through the body part of the lumen to being made into a sharp curve without causing The ability of the cross-section to fold, which will stop the flow of fluid or air through the orifice of the tube. The flexibility of the first thermoplastic polymer is measured by its Young's modulus. In a particularly preferred embodiment, the preferred range is from about 2 to about 60 MPa (million Pascals). PVC medical tubing serving as a reference point for the flexibility of the first thermoplastic polymer, examples of which include but are not limited to intra-articular endoscope tubes, coronary artery bypass tubes, perfusion tubes, catheters, dialysis tubes, and peritoneal lavage tubes , Breathing tube, endotracheal tube, gastric feeding tube, wound drainage tube, urine catheter, IV set, angioplasty tube, and general purpose PVC tube, such as "TygonTM" brand P VC tube, shaped by Norton performance Manufactured by Meal Company (W ayne, N J.). The range of flexibility covered by these fittings ranges from rigid endotracheal tubes to flexible arthroscopy tubes to highly flexible IV sets. The P V C used in this type of pipe fitting has a Young's modulus ranging from about 2 MPa to about 100 MPa. -13- The size of this paper is applicable to China National Standard (CNS) A4 (210X 297mm) (please read the precautions on the back before filling this page)

1T A7 B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (11) b. The Young ’s modulus of the second thermoplastic polymer is the same as the Young ’s modulus of the first thermoplastic polymer It is more than about fifteen times, preferably about equal to not more than about fifteen times, and more preferably in the range of more than up to about fifteen times. Particularly preferably, the Young's modulus of the second thermoplastic polymer is not more than about seven times higher than the Young's modulus of the first thermoplastic polymer, and most preferably not more than about three times the highest. The preferred embodiment has the Young's modulus of the second thermoplastic polymer in the range of about 5 to 300 MPa, more preferably in the range of about 20 to 1 50 MPa, more particularly 20 to 45 MPa = c. Relative to any other single layer, the core of the tube wall provides at least slightly greater wall thickness. 3 The core includes the inner layer of this wall and is composed of at least the first thermoplastic polymer Any other layer 3 more specifically, the thickness ratio of the wall layer incorporating the first thermoplastic polymer to the wall layer incorporating the second, third and other thermoplastic polymers is about 1: 1 to about 3 0: 1, preferably about 1: 1 to about 10: 1, more preferably about 1: 1 to about 5: 1. This parameter allows the flexibility of the wall core to dominate the composite properties of the multilayer tube. d. This multi-layer tube preferably exhibits resistance to kinking / rekinking that is simulated or greater than polyethylene medical tubing. Examples of such medical fittings include those shown in paragraph a above. The kinking / re-kinking resistance of the pipe fitting is preferably from about 丨 .8 or larger, more preferably from about 2.0, especially 2.2 or larger, which is based on the kinking described in the example paragraph below- 〇-Instrument test measurement = Although it refers to the kinking / re-kinking of medical PVC pipe fittings, the present invention includes the application of this multi-layer pipe to non-medical -14 that require similar resistance functions-This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm) --------- Yu-- (please read the notes on the back before filling in this page) A7 Printed B7 by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 12) The purpose of treatment tube. e. In addition to the flexibility of the first thermoplastic polymer and the core of the tube wall, the multilayer tube itself is preferably shown to simulate or be more flexible than polyethylene gas medical tubing. Examples of such medical fittings include those shown in paragraph a above. More preferably, the multilayer tube has a Young's modulus in the range of about 10 to about 60 MPa. Although reference is made to the kinking / re-kinking of P V C medical tubing, the present invention includes the application of this multilayer tube to non-medical tubing applications that require similar resistance functions. f. This multi-layer tube preferably exhibits a lower tensile strength than the polyethylene medical tube, but not too low, so that when medical personnel pull the end of the tube, it will not deform and cause the tube hole to shrink. (See Example 1-18, stress value at 50% strain). To compensate for the lower tensile strength, pipe fittings can be made with thicker pipe walls. The hose clamps and roller clamps used in the standard polyethylene gas IV kits have been used and the nurses tested the pipe fitting samples, and they have been found to have sufficient strength for typical medical uses. g. The outer surface layer of the tube wall and in the preferred concrete example, the multi-layer tube body preferably shows the wear resistance of the simulated or greater than polyethylene medical tube. Examples of such medical fittings include those shown in paragraph a above. More specifically, the outer surface layer of the pipe wall and preferably, the multilayer pipe itself shows the wear resistance of the outer surface in the range of about 100 or greater friction index, which is by ASTM test D 1 630- 83. The standard test method for rubber properties-abrasion resistance (NBS abrasion tester) is measured. Although it refers to the wear resistance of PVC medical pipe fittings, the present invention includes the application of this multilayer pipe to non-medical pipe fittings that require similar resistance functions -15-This paper size is applicable to China National Standard (CNS) A4 specification (210X297 Mm> (Please read the notes on the back before filling this page)

、 1T A7 V. Description of the invention (η on the way. (Please read the precautions on the back before filling in this page) h. This multi-layer pipe fitting preferably shows substantially full resilience during a simple fixture test of at least 45 hours And basically there is no wall rupture, the test is as described in the pipe fixture test in the usual example. This resilience system includes the ability of the ear wall to be completely collapsed without suffering permanent deformation. The wall of the pipe should be back and soil In its initial state, to show full resilience on the base coat. It should not crack or show signs of stress weakening, to show rf: basically no wall breakage 3 This layer layer < kinking / re-twisting resistance, system It is an important physical characteristic ° The resistance to kinking is the ability of the pipe fitting to resist the tendency to form folds in the wall of the pipe when it is bent. Such creases may completely or partially make the hole (; tile body Flow cutoff or occlusion. The resistance to re-kinking is the ability of the pipe to resist the crease in the wall after it has been kinked. 3 Appreciate the piece's kink / re-kink resistance 'available' Kink-0- Meter " to measure Described in the kinking test proposal and example U 8, and depicted in Figures 3A, 3B and 3 C. Economic, Ye Central Standards Bureau employee consumer cooperation du printing and the 'multilayer tube of the present invention will be shown as expected Twisting / re-twisting characteristics between individual layers of the tube wall However, the preferred specific embodiment of this multilayer tube has unexpected twisting / re-twisting resistance. Such sa · such as examples show significant advantages The resistance to kinking / re-kinking is considered individually. For example, a "multilayer tube made of a copolymer of ethylene and butene (such as" Exact "polymer, manufactured by Exxon Corporation (Houston, TX)) Inner layer 'ion-bonded copolymer of ethylene and methacrylic acid with zinc or sodium ions (such as " Surlyn ”polymer, made of the outer surface layer of DuPont (made by Wilmington, DE), relative to The same size and one -16- This paper is again applicable to the Chinese National Falcon (CNS) A4 specification (210X297 mm) 5. Description of the invention (14 A7 B7 --- a single polymer ~ drawer parts:, and Now, its display is surprisingly twisted / five twisted Knot resistance characteristics. Regarding this ... and then for the details of the poor case 1 · 丨 8 · • Comments •• .'r 1 Series k This righteousness officer can pass xiacheng _, tt--V «m ten thousand type Combined with itself and other plastics, its ten thousand cruel uses an adhesive, 璲 — " J * such as random base acrylate and epoxy resin, A agent welding, radio frequency welding, micro Lulu ^ _ paste bath skin, Connection, especially through the use of salty fqp, and heat welding. This multi-layer camp & Chemical and other degradation under 4 mother conditions. This multi-layer tube will resist the degradation of 糸, so that in the preferred embodiment, it has a significantly long shelf life, and does not turn yellow or aging. The first thermoplastic-, 丄 L The first thermoplastic polymer system is used to form the inner thickness of the core wall. It includes any flexible, compliant thermoplastic polymer with the above flexibility and preferably Young's modulus characteristics. Preferred thermoplastics include C 2 to C 4 (please read the precautions on the back before filling this page) -3 Printed by the Employee Consumer Cooperative of the Central Prototype Bureau of the Ministry of Economic Affairs

Polymers of mono-unplaned and rare hydrocarbons, most of which are C2 to C4 monounsaturated associative hydrocarbons and a small proportion of substituted olefin monomers (eg c 4 to c 1 * monounsaturated cockroach hydrocarbons or C8 to C14 aryl ethylenic hydrocarbons), and most of them are C 2 to C 4 monounsaturated ethylenic oleacids and a small part are substituted c 2 to c 6 „Unsaturated ethylenic hydrocarbons (with Substituents, such as C 1 to C 6 alkoxycarbonyl, carboxylic acid, carboxyamide, and carboxylate copolymers), examples of which include copolymers of hoof hydrocarbons and substituted olefins, such as ethylene and propylene, the Substituted. Hoof hydrocarbons, such as vinyl acetate (EVA or PVA), N-methylpropylene amine (EAM or PAM), acrylic acid (EAA or PAA), acrylic acid (EMA and PMA, EMA or PMA ion bond polymerization Body (EMAZ or PHAZ and zinc: EMAS 17 This paper scale is subject to the Chinese National Standard (CNS) A4 regulation (210X297 published) A7 Central Ministry of Economic Affairs Bureau of consumer consumption cooperation du printed B7 V. Invention description (15) or PHAS and sodium) and acrylates and methacrylates with C 1 to C 6 alkyl groups. In the case of PVA copolymers, acetate Polyvinyl alcohol (PVO) is obtained by total hydrolysis. Other examples include all hydrocarbon-substituted olefin ethylene or propylene copolymers, such as ethylene or propylene and stupid ethylene (ES or PS), ethylene or propylene and butadiene (ES). EB or PB) and ethylene or propylene and octene (E 0 or P 0). Specific examples include the following copolymers, ethylene and vinyl acetate (EVA) 'ethylene and butene (EB), ethylene and n-propylene Butyric acid (EBA) and ethene and ethyl acrylate (EEA). Generally speaking, when substituted olefin monomers or burned or aryl olefin monomers, in such dilute hydrocarbon copolymers As the amount increases, the Young's modulus of this copolymer will be lower. Therefore, the ratio of most olefin blocks to a small number of substituted olefin blocks in the polymer is selected to cause copolymerization The material has an appropriate Young's modulus as described above. This amount is preferably from about 2% to about 50%, particularly preferably from about 10% to about 40%, based on weight. The second and third types Thermoplastic polymers The second and third thermoplastic polymers include any toughness, abrasion resistance heat with the above characteristics and high Young's modulus Polymer. The second and third thermoplastic polymers can have any suitable main chain structure, such as cross-linking, pseudo-cross-linking, main chain branching, random, joint, ionic bond complex connection, crystallinity Merging with amorphous parts, hydrogen bonding and the main chain structure that restricts the three-dimensional movement of the main chain. By selecting the appropriate main chain characteristics, the degree of substitution on the monomer, and the amount of less monomer present, you can get a suitable The tensile strength, Young's modulus and wear resistance of pipe fittings. Generally speaking, the second and third thermoplastic polymers have the same characteristics, but they do not necessarily have the same chemical structure. -18-(please read the precautions on the back before filling in this page) • V5 This paper translates to Chinese National Standard (CNS) A4 specifications (210X297mm) A7 B7 5. Invention description (16) The best situation is, The second and third thermoplastic polymerization systems include polyolefins, cross-linked polyolefins, olefin-substituted olefin copolymers, and polyurethanes, polyethers, and polyesters. The olefinic monomers used alone or in combination to form the polyolefin can be selected from aliphatic and aromatic olefins having two to fourteen carbons, such as ethylene, propylene, butadiene, octylo and stupid ethylene. Preferred polymers and copolymers of such olefins include polyethylene, polypropylene, copolymers of ethylene and butene (EB) and copolymers of ethylene and styrene (ES) ° in copolymers of dilute hydrocarbons , Less hydrocarbon monomers (C 4 to CI 4) are preferably present in an amount in the range of about 2% to 20%, based on weight 3 When using a copolymer as the second or third Thermoplastic polymer 0, which can also be composed of C 2 to C 4 olefin monomers and C 2 to C 6 monounsaturated olefins substituted substituted hydrocarbon hydrocarbon monomers, the latter having substituents such as oxygen pit Si group, Carboxyl group, carboxamide group and other similar polar groups. Examples include acrylic acid, methacrylic acid, acrylamide, and similar hydrogen bonds or crosslinkable dilute hydrocarbons. Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs ----------- Read the precautions on the back before filling out this page) The main chain structure, degree of substitution, and small amount of monomers mentioned above for the second and third thermoplastic polymers are selected to maintain polymerization The thermoplastic properties of the body, as well as the degree of wear resistance, toughness and rigidity, meet the requirements of the above-mentioned Young's modulus requirements. Furthermore, the thermoplastic dilute hydrocarbon copolymer is selected as the second and third thermoplastic polymers according to the guidelines given above regarding the variation of Young's modulus. Preferred olefin copolymers include most of C 2 to C 4 hydrocarbon monomers and a small amount of substituted olefins. Although 3 is preferably, a small amount of monomers is present in an amount of about 2% to Approx. -19-This paper scale is applicable to the Chinese National Standard (CNS) Αβλ # (210 < 297 g) A7 A7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs!--B7_ V. Description of Invention ~ 4 Ο ° 'ό', preferably about 2% to about 20%, with weight as the bodhisattva. The higher the amount of children in the copolymer, the higher the rigidity of the copolymer and the better. In the preferred embodiment, the first, second and third types of winter gas t The thermoplastic polymerization system is an olefinic polymer. Examples of preferred first thermoplastic associative hydrocarbon polymers include ethylene-vinyl acetate copolymer (E va), acetone acrylate copolymer, such as ethylene acrylic acid n-butyl acetate copolymer (EB A), Ethylene-butene copolymer (eb), ethylene-octene copolymer (E 〇) and combinations thereof. EAV copolymers (such as ULTRATHENE copolymers, manufactured by Quantum Chemical Corporation (New York, NY)), and EB copolymers (such as Exact copolymers' manufactured by EXX ο η Chemical Company (Η 〇ust ο η, TX)) , The department is particularly good. The second and third non-limiting examples of the thermoplastic hydrocarbon polymers include acetopropionic acid copolymers (EAA, such as N ucre | τ Μ copolymers) by Du P 〇nt Corporation (W i 1 mingt ο η, D Ε)) and ion-bonded I with zinc or sodium ethylene phosphate-methacrylic acid copolymer (EMA Z and EMAS, such as EI DuPont de Nemours (Wilmington, DE) The manufactured SurlynTM copolymer), the first, second and third thermoplastic polymers can also constitute olefin copolymers with the same two monomers but using different monomer ratios. The different ratios will change the formation The modulus value of the copolymer, and therefore makes this copolymer the first, second, and third thermoplastic polymers. For example, the first, second, and third thermoplastic polymers can all be obtained from EVA and EBA copolymers, by individually changing vinyl acetate (VA) and acrylic acid-20 (CNS) A4 specification (210X297mm) -II I -1 H 8--1 1, I n I I J, v '° (please read the precautions on the back before filling this page) Α7 Central Standards of Ministry of Economic Affairs B7 printed by the Bureau ’s Consumer Cooperative. V. Description of invention (18) The weight% content of n-butyl ester (nB A) monomer in EVA and EBA copolymers. EVA and EBA copolymers with relatively high VA and η-BA content will provide low Young's modulus materials, suitable for use in the inner layer of multilayer pipes. 3 On the other hand, EVA with relatively low VA and n-BA content With EBA copolymer, it will provide a high Young's modulus material, suitable for use on the outer surface I, and for pipes with three or more layers, it is the inner surface layer 3 For example, when the EBA copolymer When constituting the inner layer, the outer layer and the inner surface layer, the η-BA content is preferably about 15 to 30% for the inner layer, and preferably about 1% to about 20% for the surface layer , More preferably from about 1% to about 〖5%, and most preferably from about 2% to about 10%, this percentage is based on Mohr. In another example, the inner layer of a three-layer wall is an EVA copolymer with a V A content of about 15% to about 40%, and the outer and inner surface layers have a VA content of about 1% to EVA copolymer of about 20% VA, based on weight. Alternatively, the outer surface layer of the wall may be an EVA copolymer having a VA content of about 1% to about 20% VA, and the inner surface layer of the wall may be an EVA copolymer having a VA content of about 15% to about 40% VA Weight, based on weight. Size The diameter and wall thickness of this multilayer tube vary depending on the intended use, and therefore, it can be easily selected by an expert who is familiar with this art. In general, the inner diameter of the tube ranges from about 0.25 mm to about 38 mm, preferably from about 0.4 mm to about 1 2.7 mm, and more preferably from about 0.8 mm to about 6.4 mm. The wall thickness ranges from about 0.25 mm to about 12.7 mm, preferably from about 0.4 mm to about 9.5 mm. Large-sized pipe fittings are generally used in non-medical fluid transportation applications, such as lead pipe engineering, ultra-pure fluid and gas transportation, etc. Smaller size pipe fittings -21-This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 'nmnn-m _ It. Nm _ _ n X -¾, va (please read the notes on the back first (Fill in this page again) A7 B7 Fifth, the invention description (19) is generally used in medical applications, such as IV sets, infusion pump sets, catheters, medical fluid lines, etc., as described in the paragraph above on pipe fitting parameters Giver. For tubing with smaller holes, such as tubing with an outer diameter of 4.3 mm, it is typically used in IV treatment kits. It is preferred to use a 0 D / 1 D ratio of 1.40 or greater. The best system uses an OD / ID ratio of I. 50 or greater. Using these ratios and the copolymers described in Examples 1-8 will cause kinking / re-kinking resistance to be higher than that of polyethylene gas fittings. 3 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -------- · Installation-(please read the precautions on the back before filling in this page) As explained above in general, one or more layers of the flexible core forming the wall of the tube are slightly thicker than the thickness Any other single tough layer of the tube wall. This factor allows the core characteristics of the pipe wall to dominate the characteristics of the fitting. In a preferred embodiment, the outer surface layer and the inner surface layer for pipes having three or more layers are thin protective covering layers for the wall core. In particular, the increased hardness and toughness of the second and third thermoplastic polymers will allow them to be co-extruded into a substantially thinner layer, while providing proper tensile strength to the pipe, and to the first The flexible core of a thermoplastic polymer provides proper protection. In general, any ratio of the inner layer (s) to the outer surface layer, and for wall configurations with three or more layers, it is the inner layer (s) to any of the outer and inner surface layers The ratio is sufficient, as long as it provides proper tensile strength to the pipe fittings and adequate protection for the wall core of the first thermoplastic polymer = the value parameter is as given in paragraph c. Above. In a preferred embodiment, when a preferred EVA or EB and EMAZ or EMAS ionomer is used to form the two-layer or three-layer pipe according to the present invention, the inner layer is preferably about 200 microns to Approx. 1 200 microns, -22-This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm Ministry of Economic Affairs Central Standards Bureau employee consumption cooperation du printed A7 B7 V. Invention description (20) is better It is about 200 microns to about 1000 microns, and is preferably about 200 microns to about 600 microns thick, and the side and inner surface layers are preferably about 10 microns to about 80 microns. 0 microns, more preferably from about 50 microns to about 600 microns, and most preferably from about 50 microns to about 200 microns thick. The thermoplastic polymer modulus measures the rigidity / flexibility of a particular thermoplastic polymer, It can be conveniently measured and expressed in terms of the Young's modulus of the polymer, and reports 3 kinds of polymerization with low Young's modulus (for example, about 2 MPa to about 60 MPa) in millions of Pascals (MPa). The body is soft and flexible, but has a high Young's modulus value (eg, about 15 MPa to about 300 MPa). The body is relatively stiff and inflexible. Polymers with low Young's modulus also tend to be cut or peeled off physically, and are used as the first thermoplastic polymer. On the contrary, high Young's modulus The polymer presents a relatively hard, tough (meaning cut and scratch resistant) surface and acts as a second and / or third thermoplastic polymer. The Young's modulus is measured in accordance with " Instron Series IX Automated Material Test System ", 5th Edition, Instron Corporation (Canton, MA), pages 13-19 to 13-27, issue number B, reference guide for January 1990, or borrow '' MTS Sintech TestWorkTM * Advanced Software for Material Testing ", Version 2.1, M TS Systems (Eden Prairie, MN), pages B-10 to B-12, in the Operator ’s Guide, January 1, 1992 The procedure outlined is carried out and is incorporated herein by reference. The following example paragraphs provide details when applying such a measurement method to a multilayer tube. Regarding the first, second, and Function and number of friction resistance and flexibility of three thermoplastic polymers -23 -The X degree of this paper is applicable to the Chinese National Standard (CNS) Μ specification (21〇Χ297 mm) m — ^ ϋ n ^ i am ^^^^ 1--t — ^ n I— -I 一 -T ^ -5 (Please read the precautions on the back before filling in this page). Description of the invention (21). The number Ϊ is relevant and in the preferred embodiment is expressed as the Young's modulus of this combination. Their parameters are shown in the parameter section Ai Zhong above: times --------- policy! (Please read the precautions on the back before filling in this page) Although it is better not to use a bonding layer (one) to bind the various layers together in the wall of the tube of Yi layer language, it can be used for This layer I is in a multi-layer structure. When the bonding layer is used, it can be composed of the following materials: 7 This material provides structural integrity to the evening layer structure, but does not substantially affect other desired characteristics of the multilayer official football, such as flexibility, transparency and environmental phase Capacitive. The specific bonding layer material to be used in the multi-layer tube according to the present invention can be selected from a wide variety of bonding layer materials that can be used by those who are familiar with this trend and subject to the needs and priorities of vent. A preferred bonding layer polymer includes a co-branded "adhesive resin, such as " B γΝeLTM resin," manufactured by DuPont de Nemours, Inc. (Wilmington, DE): ADMERTM Tree Moon Purpose, by Manufactured by Mitsui Plastics (White Plains. NY): "PlexarTM resin ,, manufactured by quantum chemistry company Meadows, IL): and" primacorrm polymer ", manufactured by W Chemical Company (Midland, MI) Manufacturing. Du Printed by the Ministry of Economic Affairs Central Bureau of Standards for Consumer Consumption provides special other characteristics to the multilayer tube of the present invention. The outer surface layer and / or inner layer may also contain conventional non-leaching additives, such as antistatic substances 'Dye, material line absorbent, nucleating agent 1 refrigerant and the like. For example, u V absorber can be added to the wall of the multilayer tube; one bite into multiple layers to be applied in a kit of photosensitizing drugs, the preparation method is a preferred method for preparing the multilayer tube according to the present invention is Press out. A total of -24- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. The description of the invention (22) will bring together various polymer materials Together to form a single layered structure, such as a pipe. This allows a unique combination of materials and structures with multiple functions, such as toughness and calibration, as well as environmental and medical compatibility. The polymer material according to the invention can be The ingredients are co-extruded in any shape from their marrying state, depending on their intended end use. The shape and / or thickness of the co-extruded structure depends on the efficiency of the specific extruder equipment used. Generally In particular, a pipe with a circular cross section, a pipe hole, and a pipe wall with an inner surface and an outer surface is a preferred co-extrusion structure. Under appropriate circumstances, the multilayer pipe according to the present invention can be Orientation in a biaxial or multiaxial manner to further enhance its physical properties. For example, in a preferred configuration, the multilayer pipe system according to the invention is composed of two layers of co-extruded pipe fittings, at least one of which is It is an EVA copolymer with a VA content of about 28%, and at least one outer surface layer is a vinyl methacrylic acid, zinc, or sodium ion bonding copolymer, which is co-extruded with the inner layer to form the exterior of the multilayer tube Protective coating = another preferred multi-layer tube according to the present invention, which consists of three-layer tube fittings, in which the inner layer is an EVA copolymer containing 28% VA, and coextruded ethane bond-methyl propylene bonded by ionic bonds Associate acid, sodium or sodium copolymer between the outer side and the inner surface layer = and, can be prepared in which the outer and inner surface layers are composed of aceto copolymer such three-tube fittings Generally speaking, the conditions of co-extrusion It involves the use of sufficient heat and pressure to cause the melting of each thermoplastic polymer or polymer mixture. When transported through the co-pressing die, the combined layer of the plasticized or melted polymer mixture is cooled, for example by means of a water bath Or air to solidify it into a solid multi-layer tube. -25- square paper size is suitable for China National Car (CNS) A4 specification (210X29? Mm). Binding (please read the precautions on the back before filling this page ) Economy Printed by the Central Standard Falcon Bureau Employee Consumer Cooperative A7 B7 V. Description of the invention (23) The flow of cooling gas or fluid can be passed through the pipe hole of the pipe fitting after being co-pressed by heat to prevent the pipe fitting from collapsing. In the invention, polymers or polymer mixtures with different melting temperatures can be used. However, the temperature of the phases of one polymer layer should not exceed the decomposition temperature of the other polymer layer. Commonly known conditions can also include the orientation of the pipe layer Technology. This orientation is better but it is not necessary to provide additional tensile strength to the pipe. In particular, the orientation technique is achieved by stretching the pipe. It can be formed shortly or immediately after the pipe leaves the die. Apply tension to the pipe to stretch it. The stretching force can be applied in the following manner, by coiling the completed, quenched pipe rate: by pulling the pipe through the quenching or cooling fluid rate: or by By pulling the tube away from the co-extrusion die rate, this tensile force is to orient the polymer chain in the direction of the force. 3 Orientation or alignment of the polymer chain. The various layers are oriented anti-tensile strength of base. This orientation technique can also be used to form extremely small diameter pipes, such as those that cannot be used directly with co-extrusion molds. Preferred Embodiments Figures 1 and 2 show cross-sectional illustrations of multilayer tubes 10 and 20 according to two alternative embodiments of the present invention. FIG. 1 shows a first embodiment of a multilayer tube 10, which has a tube hole 16, an inner layer of the first thermoplastic polymer without gas, and an outer surface of the second thermoplastic polymer without gas. Covered by layer 1 4. The first thermoplastic polymer is substantially softer than the second thermoplastic polymer used in the multilayer tube 10 = therefore, the outer surface layer I 4 provides a protective protective coating for the softer inner layer 12. 1 The Young's modulus of the first thermoplastic polymer is lower than that of polyethene gas fittings for IV sets, and it is less than -26- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297). ~~~ (Please read the precautions on the back before filling out this page) Clothing.,-° A7 B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Description of invention (24) The best line is about 2 to about 30 MPa ( Million Baska). The Young's modulus of the second thermoplastic polymer is higher than the Young's modulus of the first thermoplastic polymer, but not more than about fifteen times, preferably from about 15 to about 60 MPa Within range. Figure 2 shows a multilayer tube 20 according to a second specific embodiment of the invention. This specific embodiment includes the tube hole 28, the inner layer 22 of the first thermoplastic polymer without gas, the outer surface layer 24 sandwiched between the outer surface layer 24 of the second thermoplastic polymer without gas, and the first layer without gas. Between the inner surface layers 26 of the three thermoplastic polymers. In this regard, it should be understood that the outer layers and the inner surface layers 24 and 26 of the multilayer tube 20 may be the same gas-free thermoplastic polymer. Alternatively, the inner and outer surface layers may be tough, gas-free thermoplastic polymers of different types and / or chemical compositions. The inner surface layer 26 of the multilayer tube 20 is a substantially softer inner layer 22 of the multilayer tube 20, providing an additional protective coating, although not shown, but a specific embodiment of a pipe fitting having four and five layers, Is better. The four-layer wall is designed to incorporate a second or third thermoplastic polymer and a light-impermeable layer 3 of coloring agent between the outer surface layer and the inner layer of the wall configuration shown in FIG. 2 Prevent light from destabilizing the sensitive chemical fluid transported by this multilayer tube. A specific embodiment of a pipe with five layers of walls is designed to incorporate a separation layer and is located in the inner layer of the first thermoplastic polymer of the wall configuration shown in FIG. This configuration of the separation layer will stabilize the layers of the first thermoplastic polymer. In the particularly preferred embodiment depicted by FIGS. 1 and 2, the inner layer is made of EVA copolymer and / or EB copolymer (such as EB copolymer, the trademark is EX act, and -27- (RNS) A4 specification (2! 0x 2 ':, Xi Li) l Clothes order (please read the notes on the back before filling in this page) A7 B7 5. Description of the invention (25) by EXX ο η 公司 （Η 〇 ust ο η, manufactured by TX) 3 whose outer and inner surface layers are made of EMAZ or EMAS copolymers (such as EM AZ and EMAS copolymers under the trademark SURYLN, and by DuPont (W i 1 mingt ο η, made by DE)). For example, the inner layer of the multi-layer tube 10 (FIG. 1) may contain about 0.45 mm to 0.8 mm of EVA copolymer having a VA content of about 1540%, or about 15 to 25 ° /. Butene content of ΕΒ copolymer, however, the second layer 14 may contain 0.15-0.2 mm of EMAZ or EMAS copolymer. Obtained is a double-layer pipe fitting 10 or a three-layer pipe fitting 20 which has the softness, flexibility, and kink / re-kink resistance of a hard, tough, and scratch-resistant protective coating. Utilization of the invention Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) The multilayer tube according to the invention can be used on a wide range of medical and non-medical products. In the medical jaw area, this multi-layer tubing is suitable for replacing gas-containing PVC tubing, such as used in intravenous (丨 V) fluid administration kits, arthroscopy fluid control systems, cardiac and vascular systems, and blood gas monitoring systems , Coronary artery bypass tube, perfusion pump tube, catheter, dialysis tube, peritoneal lavage tube, breathing tube, endotracheal tube, gastric feeding tube, wound drainage tube, urine catheter, angioplasty tube, and general purpose PVC fittings , Such as "TygonTM" brand PVC pipe fittings, manufactured by Norton Performance Plastics (Wayne, NJ). When the wall of the multi-layer tube is composed of a core and a surface of a gas-free thermoplastic polymer that does not expand or form a microporous matrix, the tube will not absorb drugs or medical fluids, nor will it be accessible. ; Additives, plasticizers, etc. considered to contaminate drugs or medical fluids through extraction, exudation or frosting. The present invention has been fully described in the aforementioned general patent specification. Provide the following -28- Bengo pan scale applicable to China National Standard (CNS) Λ4 specification (210X 297mm) Printed A7 £ 7__ by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description (26) Examples for further explanation The present invention = However, it is not meant to indicate the limitation of the broad scope of the present invention. Regarding the Proposal of Physical Measurements The following discussion provides general proposals for carrying out certain physical measurements of pipes made in accordance with the present invention. The outer diameter (0D) / inner diameter (丨 D) and the layer thickness are measured using an optical comparator (N1 k ο η-type projector v -1 2 with a Nikon SC-102 digital readout scanner), To measure the pipe diameter and layer thickness of multilayer pipes. The relative layer thickness is calculated by assuming that the total thickness of the layer is equal to 100% = Young's M number, and the strain percentage under the jixing j branch-50% should be worn under each load, at 5 + 1 Respond to your needs! And the recovery percentage after the 50% Kang change uses a material testing system (MTS) 880 (MTS System Company (Eden pralne, MN)) to apply tension / elongation measurements to the pipe fitting samples, of which MTS Sintech is used Testwoi-ks I [application software packaging version 2 "was carried out. Modify ASTM test method D876-90 ·· Standard test method for non-rigid gas ethylene polymer pipes used for electrical insulators "to test pipe samples. The length of the clamp to be held by the MTS testing machine holding the clamp is initially set Interval 5.08 cm (2 inches) 3 The elongation rate is 15 24 cm (6 inches) per minute = three copies of each tube sample. For each copy, the following information is calculated and averaged: 1. Young's modulus, based on the maximum slope of the stress / strain curve, using a 3% strain gauge ^ length as a boundary (see the MTS Sintech software packaging quoted above) ___ * 29- 'The paper size is applicable so that the country sees the forest 7-2 -, 〇κ 2975 ¥ 1 I m----HI-^^ 1--. --1 (please read the precautions on the back before filling out this page) Amendment page for the Chinese specification of Patent Application No. 83106554 (October 1985) A 7 ------- B7 27 I --- ---------- V. Description of the invention () Wide ............... . 't ... i. 〇1 **-' 'I… 1 2. Load at 50% strain. 3. Stress at 50% strain. In addition to the measurements listed above, proceed to 5 〇% after strain Restoration percentage of the tube member 3 t metric sample was stretched to 5 billion% strain, it loose - minutes' load is not applied, and then - until the display reads views stretching force is obtained 0.045 kg (square ".) Up the load. Run the grip to achieve this. Please count the full distance 'and record it as a percentage of the original length of 58.0 cm (2 inches). The percentage of reply is calculated by subtracting the percentage of length increase from 100%. For example, if the official sample is restored to 107% of its original length, it is recorded as 93%. Since the stress / strain characteristics will change over time after extrusion, this metric is reported at least one month after extrusion, unless otherwise mentioned. Kink / re-kink resistance test method The kink / re-kink resistance test method is used to determine the resistance of the pipe sample to sudden f-bend shrinkage, when the sample is bent backwards towards itself to cover a too small radius 'It will seal the lumen of the tube sample. Once such shrinkage (hereinafter referred to as kinking) has occurred in the polymer tube specimen, it is typically a weakened area, and it is particularly vulnerable to similar damage (hereinafter referred to as kinking). The re-kinking effect can occur on a larger bending radius of the tube than required to cause the initial kink. "Specifically, during a typical IV treatment," the conventional practice is to circulate the I v tube to 180 degrees and attach this ring. To the patient's wrist. The possibility of kinks in the IV line in this circle or elsewhere is tolerated to complicate the delivery of 1 v treatment 'and must be prevented by the medical practitioner -30- DUJI County (CNS) M specifications (2iGx29, 々f --------------- IT ------ # f 碕 先 闻 读 'The back of the :: i 意 事 一 5: Fill too hundred c Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 2 \) 69υ5 Α7 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy. This method is aimed at comparing the ability of the flexible pipe to resist kinking and re-kinking to compare its characteristics. This test is applicable to pipe diameters from 0.127 to 0.635 cm, and this test is performed at room temperature. Referring now to Figures 3 A and B, this test was conducted on a test device 1 10 (Kink-0-Meter) for measuring the resistance of the kinking and re-kinking of pipe fitting samples. The test device 1 1 0 includes a lower plate 1 2 0 with a lip 1 2 2 along one edge. Two bolts 1 3 5 are loaded on the lower plate 1 2 0. The upper plate 1 3 0 with a lip 1 3 2 along one edge and two slots 1 3 4 is loaded and slidingly engaged with the lower plate 1 2 0, wherein the bolts 1 3 5 are fitted in the two slots The method in 1 3 4 causes the lips 1 2 2 and 1 3 2 to be arranged parallel to each other. A pair of wing flap nuts 1 3 6 (Figure 3 B) are mounted on the bolts to provide a suitable amount of sliding resistance between the lower plate 1 2 0 and the upper plate 1 3 0 3 against the upper plate 1 3 The mark 1 4 0 read at the edge of 0 is provided on the lower plate 120 to quantify the result. The number of marks 1 4 0 ranges from 3.4 when the lip of the plate is fully closed to 1.2 when the lip of the plate is fully open (that is, the separation distance is 3.8 cm). The procedure for measuring the resistance to kinking and re-kinking using Kink-0-Meter is as follows: 1. Cut the tube sample at least 30 cm in length. 2. Move the upper plate on the test device until the slot formed between the lip of the upper plate and the lip of the lower plate is fully opened. 3. Crimp the pipe sample into a "quote" shape and place it in the groove, as shown in Figure 3C. 4. Slowly slide the upper plate to reduce the width of the groove, so reduce the pipe sample _- 31-Large paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm)

In nn ^ —-HI. M — ^ ϋ ni— I y ^, words (please read the precautions on the back before filling in this page) A7 B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of invention (29 ) Until the tube sample is kinked. The sliding rate should be slow and uniform, with a rate of 10 to 15 seconds from the open position to the closed position. 5. Read the mark, and record the number of green exposed along the bottom edge of the upper plate and the lower plate, which is confirmed as the number of "kinks". 6_ Use ink at the kink position to mark the tube sample. 7. Move the pipe fitting sample away from the groove and press the sides of the " U ”shaped pipe specimen together to ensure that the pipe fitting is fully twisted. 8. Straighten the pipe fitting sample to open the kink 9. At 30 seconds After that, place the tube sample in the groove with the back so that the kinked area is tied to the bottom of the "U". 10. Repeat step 4 until the tube sample is kinked again. 11. Note the number of green exposed along the bottom edge of the upper plate and the lower plate, which is confirmed as the "quoted number". Example 1-1 2 Three-layer pipe fittings with EVA and EB inner layers Twelve AB A three-layer pipe fittings consisting of an inner layer (B) and outer and inner surface layers (A), having a multi-layer pipe with a diameter of 0.737 cm The hole die and the 0.63 5 cm mandrel are pressed together. The copolymer for layer B was supplied from a 2.5 cm (1 British pair) Killion extruder using a conventional screw to a hole die. The extruder was commercially available from "Killion KL100 type" from Killion Extruder Company (Cedar) Grove, NJ). The copolymer for layer A is supplied from a 1.3 cm (丨 / 2 inch) Randcastle micro-miniature extruder, using a conventional screw to the hole die. The pressure: the machine is commercially available from R andcas 11 e extrusion system company (L i 111 e F a 11 s, -32-Tai paper size is applicable to China: T. Detailed description (CNS) A4 specification (210X297 mm) γClothing (please read the back (Notes to fill out this page) A7 B7 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (3〇) NJ) 3 Separate the melt obtained from copolymer A 1 into two streams in a hole die , And before leaving the die, merged with copolymer B to form an ABA configuration. Then, the melted multi-layer official was immediately passed into the water bath, the bath can be "κ 丨 丨 1 丨 〇n VT-2-6-1 type empty Trough ", city squat from Kili10n extruder company (Cedar Grove, NJ) 'pipe fittings are quenched and solidified in it 3 to prevent The pipe fitting in the molten state collapses, passing S gas through the small hole of the pin in the center of the hole die, and silver enters the inside of the pipe fitting (hole). The internal hole pattern structure was changed, and the speed of the extruder screw was adjusted to obtain the desired relative layer thickness. The rate per minute (RPM) of the screw of the extruder is kept constant for the inner layer system, and this RpM is in the table! Change within the range shown in. Use a fixed-speed belt puller to pull the pipe parts away from the hole die and pass through the water bath. The puller can be "K i 11 i ο η 2 -1 2 丨 1 type" commercially available from Killion Extruder Company (Cedar Gr 〇ve, NJ) 3 The ratio of the overall output of the orifice through the high drawing speed and by adjusting the air pressure in the cavity of the pipe, the outer diameter and inner diameter of the pipe can be controlled. The specific extruder conditions for Example 1_! 2 are shown in Table 1. Each of the 1-3 and 7-9 pipe fittings in Example A consists of a very low modulus, ethylene / methacrylic acid copolymer ion exchanged polymer (EMAS), which can be " Sui.lynTIVM · ^ Fat No. 8320 " commercially available from EI DuPont de Nemours Company (Wilmington, DE). Layer A of each example 4-6 and 10-12 pipe fittings is composed of a very low modulus, ethylene / ethyl acrylic acid copolymer zinc-doped ionomer polymer resin (EMAZ), which can be " SurlynTv ^ Fat number 9320 1 "commercially available from e. I.

DuPont de Nemours (Wilnington, DE). Each Example 1-Layer B of the pipe fittings is made of 28% by weight VA content 33-M's Zhang scale applies the F Guanjia standard (CNS) A4 specification-I 111-^^^ 1 nn In n I n ^ i -m I j one — Μ tooth, \ έ (please read the precautions on the back before filling in this page) A7 ________B7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of invention (31) \ EVA composition It can be "U111. Athene τ M resin number UE 645-04 ", commercially available from Quantum Chemical Company (Rolling, iMea (] ows, 1L.). Each example 7-12 layer b of pipe fittings, both Composed of ethylene / butene (E b) copolymer 'It can be ExactTM resin number 4028', commercially available from Exxon Chemical Company (Houston, TX). Individual layer thickness, relative layer thickness, external Diameter, inner diameter,

The load at 50% strain, stress at 50% strain, Young's modulus, resilience from 50% strain, and resistance to kinking / rekinking are all measured using the above test method. The results are shown in Table 2. jbfe f- M A

Use the above test method to measure the outer diameter, inner diameter, load at 50% strain, stress at 50% strain, Young's modulus, from 50% Resilience to strain and resistance to kinking / rekinking, the kit can be "1 1 3 Μ health care 2 3 0 丨 V kit", commercially available from 3 Μ (S t. P au 丨, Μ Ν). The results are shown in Table 2. At Ding Xing Jiao Shi imitation B-E-series of four single-layer laminated pipe structure, made from ethylene / butene copolymer, ethylene / methacrylic acid ionomer copolymer resin and Ethylene / acetate acetate S & copolymer. Special copolymer resins are used, including: (B) An ethylene / vinyl acetate (EVA) copolymer with 28% vinyl acetate units, which can be UltratheneTM UE 643-04 ", available from Quantum Chemical Company (Rolling) Meadows, IL): (C) —a sodium-doped ethylene / methacrylic acid ionomer resin (EMAS), which is available as fat number 8, '20, commercially available from e. 1. DuPont de Nemours ( Willington, ___________-34-This paper scale is applicable to China National Standard (CNS) 8.4 specifications (2: 0 ^ >-111 nn In ί ^^^ 1 tl ^ i ml ^^^ 1 ί — ^ ϋ am 1 ^ 1 w Jr-* (Please read the precautions on the back before filling in this!) A7 B7 V. Description of invention (32 DE printed by the Employee Consumer Cooperative of the Central Bureau of Economic Affairs of the Ministry of Economic Affairs): (D) —Vinyl / Methacrylic acid ion-bonded polymer resin (EAMZ) doped with zinc, available as "SurlynTM resin number 9320", commercially available from E. DuPont de Nemours (Willington, DE): (E)-a kind of acetone / Butadiene copolymer (EB), which can be 'Exact resin number 4028 ", commercially available from Exxon Chemical Company (Housto n. TX) ° Examples of the use of these copolymer resins 丨-丨 2 used in the 1.3 cm (丨 / 2 inches) cylindrical Randcastie micro-miniature extruder extruded into a pipe fittings' Kill ion extruder It is closed. About the extruder conditions of the single-layer laminated parts of Comparative Examples B-E, they are shown in Table 1. The outer and inner diameters of this single-layer pipe fitting are under 50% strain. The stress at 50% strain, Young's modulus, resilience from 50% strain, and resistance to knot formation / re-kinking are all measured using the above test method. The results are shown in Table 2. About Examples 丄The comments up to 12 are similar to those of the three-layer pipe fittings in Example 1-I 2 _ slightly higher. The low Young ’s modulus of these pipe fittings indicates their flexibility ~ two pvc.— Generally speaking, adding 7 relative layers of the inner and outer layers of the three-layer pipe sample will cause the Young's modulus to increase. In Examples 2-3, 5-6, and 7-12, from 50 ° / 〇 you Less 9 0 0 / 〇. These results are advantageously comparable to PVC. How the private pipe fittings recover 3 ^ Μ to PVC under the tension when in use, but have strength or stress at 50% strain Although it is used for most of the medical tubing. Use vinyl / A in the outer and inner layers • 35- This paper is also applicable to the Chinese National Standard (Cns) A4 specification (210X 29 * 7mm) — (please first Read the precautions on the back and then fill out this page),-= β ρ VC or the responsiveness of the stomach $ and JL means that this sub-key is printed by the employee consumer cooperative of the Central Standardization Bureau of the Ministry of Economy. The ABA three-layer pipe made of resin and EVA or ethylene / butylene copolymer core layer has a resistance to kinking / re-kinking which is equal to or greater than that of any copolymer resin made in a single layer. By adjusting the layer thickness of the ABA three-layer pipe fittings, a pipe fitting with a greater resistance to kinking / re-kinking than PVC is made. Specifically, although the resistance to kinking / re-kinking of polyethylene pipe fittings is 2.5 / 2.丨, but the resistance to kinking / re-kinking of the multi-layer tube of ionic bonding and EB (Sur 丨 y η and EX act) polymer is as high as 3.2 / 3. 1.

Comparative Example F A single-layer laminated pipe structure made from ethylene / methacrylic acid (EMAZ) zinc-doped ion-bonding polymer resin, which can be " S ur 1 y η τ M resin number AD 8255 ″: MI = 4 g / 10 minutes: commercially available from EI DuPont de Nemours (Willington, DE). These copolymer resins are extruded into pipe fittings and used as described in Examples 1-2 in 1. The 3 cm (1/2 inch) cylindrical Randcastle micro-miniature extruder was carried out with the Killion extruder turned off. The conditions of the extruder for the single-layer extruded pipe fitting of Comparative Example F are shown in Table 3. The above test method was used to measure the outer diameter, inner diameter, load at 50 ° / 〇 strain, Young's modulus, and kink / re-kink resistance. The results are shown in Table 4. Example 1 3-1 8 with EB The inner three-layer pipe fittings six ABA three-layer pipe fittings consisting of the inner layer (B) and the outer and inner surface layers (A) are co-extruded from the multi-layer pipe orifice mold as described in Examples 1-12. About this The specific extruder conditions for the three-layer co-extrusion fittings are shown in Table 3-36-This paper size applies to China Standards (CNS, A4 specifications (210X 297 / ^ · ^; (please read the precautions on the back and then fill out this page) Printed and printed on the A7 ___________B7 _ by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs An example 1 3-18 The a layer of the pipe fittings are all composed of zinc-doped ionomer resin (EMAZ) of low modulus ethylene / methyl propylic acid copolymer, which can be " SurlynTM resin number ad 8255 1 1 ”commercially available from Ε. I.

DuPont de Nemours (Wlllington 〇Ε). Layer B of each Example 1 3-18 pipe fitting is composed of ethylene / butene copolymer (EB), which can be "ExactTM resin number 4028", commercially available from Exxon Chemical Company (Houston, TX). Examples 1 3-1 7 < The Young's modulus of the ABA three-layer pipe fitting is predicted using the mixture rule: P = X1P1 + XcPc + X〇P〇 (Equation 1) where P is the Young's modulus of the ABA three-layer pipe fitting: χ >, X., X. are the weight fractions of the inner layer, core and outer layer: and P1, ρ., p0 are the Young's modulus of the single-layer pipe fittings of the same composition. The modulus is measured using the "11 ^ 1_〇1 ^ 1 丨 221 type" with software program from nstron (0 & 1 ^ 〇11, 1'4 eight). Between holding the helmet and losing the gear The clamping length is set at 5 〇8 cm (2 inches), and the head speed is 5 〇8 cm / minute (2 inches / minute). The meaning of Young ’s modulus system is stress / strain The maximum slope of the curve. Fifty percent load, the tension is defined as the force or tensile strength at 50% elongation. This layer of f pieces < individual layer thickness, relative layer thickness, The outer diameter, inner diameter, and kinking / resistance resistance are determined using the above test method. The physical properties of Example 18 are using the above test method, using the MT test device to conduct the "Zhi foot" The results are shown In Table 4. ---------37-See the grid 7 of the Newton scale Langzhong han 7 2i〇 ^ jy n ^ i tn tflu 1 · mu ^ 11 ^ 1 ί I Ί Wear, v 彡 (please Read the precautions on the back before filling this page) A7 ____ B7_________ V. Description of the invention (35) Comments on Examples 1 3 to I 8 These results show that the Young ’s modulus can be predicted using the mixing rule of equation 丨. However, The re-twisted value cannot be determined using the same mixing rule. The re-twisted value of the three-layer ABA pipe fitting is higher than that of any single-layer pipe fitting with the same composition. 3 Specifically, although the ion-bonded polymer (Suriyn) pipe fitting The resistance to kinking / re-kinking is 2.3 / 1. 2, and the resistance to kinking / re-kinking of EB (Exact) polymer fittings is 2.4 / 1.4, but the ionic bonding is connected to that of EB (Surlyη and Exact) polymers. The resistance of multi-layer pipe fittings to kinking / re-kinking is 2.6-2.8 / 2.0-2.2. The sex system was tested using K ink-0-M eter, as described in the proposal before Example 1) 3 Therefore, this multilayer tube surprisingly shows a higher kinking / re-kinking than any of the individual polymer layer tubes Resistance. Example 1 9-2 2 Two-layer pipe fittings Printed by the Consumer Labor Cooperative of the Central Bureau of Standards of the Ministry of Economics -------- Installed-(please read the precautions on the back before filling this page) Use 2.5 The centimeter-cylinder Killion-extruder (Killion Extruder Company (Cedar Grove, NJ)) and the 1.3-cm-cylinder Randcastle MicrotruderTM extruder (Randcastle Extrusion System Company (Little Falls, NJ)) manufacture four Pipe fittings are extruded from both layers. Fix this iso-extrusion machine to a multi-layer hole die with a center pin of 0.5 cm, and use a 0.5 cm sleeve in the empty barrel above the extrusion line. Manufacture example 1 9-2 2 Pipe structure, and adjust the layer thickness by adjusting the output of the extruder. Example i 9-2 2 The specific extruder conditions of the two-layer pipe fittings are shown in Table 5. The outer surface of each example 19-22 pipe fitting contains 6 weights. /. Vinyl Acetate (VA) Ethylene Vinyl Acetate Copolymer (EVA) ___-38-Ben. ¾ Man degrees apply to the domestic slave; CNS) Μ specifications (210X 297 Yy Ministry of Economic Affairs Central Standards Bureau employee consumption cooperation Du Yin System A7 B7 V. Description of invention (36) (PetrotheneTM code NA 3 16-138: Melt index = 1.3 g / 10 minutes: density = 0.928 g / cc: Quantum Chemical Company (Rolling Meadows, IL)). It can be seen from the EVA copolymer with 28% by weight VA content (11 丨 ^ 11 ^ 1161 2 'No. 11 [645-04: Melt index two 3 5 g / 10 min: density = 0.95 g / cc: Quantum Chemistry Company (Rolling Meadows, IL)). The individual layer thickness of the two-layer example tube is measured by measuring the cross-section of the tube through optical microscopy. The sample of each example tube is cut and trimmed, and then embedded in 3M ScotchcastTMS brand electrical resin No. 8 (3M, St. Paul, MN). Then, using a microtome, cut the tube into 10 μm thick transverse sections. Place the sample in a glass carrier immersed in oil And place a cover slide over it. Then, pass The thickness of the layer was measured by the bright field optical microscopy. Because of some misalignment of the pin pin of the die of the extrusion machine, some tube samples are asymmetric. Therefore, the average thickness of the inner layer and the outer surface and the total of each tube The thickness is recorded and shown in Table 6. Example 2 3-2 6 Red two-layer pipe fittings ^^^ 1 ^^^^^ 1 ml I-m fll ^ n-I — i I p ^ i ^ — flu one (please (Read the precautions on the back before filling this page) 1 To more effectively see the individual layer thickness of the two-layer pipe structure according to the invention, red dye is incorporated into the outer surface of the pipe to make two of the four examples 23-26 Co-extrusion of pipe fittings in layers. The pipe fittings of Examples 23-26 were co-extruded using the same extruder, multi-layer hole die, central pin and bushing used in Examples 1 9-2 2. As in Example 丨 9 -2 2, Example 2 3-2 6 The pipe structure is made by adjusting the output of the extruder to change the layer thickness 3 Example 2 3-2 6 The specific extruder conditions for the two-layer pipe fitting are shown in Table 7 3 -39- A7 Printed B7 of the Consumer Cooperation Cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs ——— ^ — — ----- V. Description of Invention (37) Each Example 1 9-2 3 The outer surface of the pipe fittings are made of ethylene acetate copolymer (E VA) containing 6% by weight of VA (PetrotheneTM code NA 3 1 6-1 3 8: Melt index = 1. 3 Grams / 1 〇 minutes: density = 0.92 8 grams / cc ;: Quantum Chemical Company (R 〇1 丨 in g M ead 0 w S, IL)), and in a 20: 1 ratio; Kun He C Μ 7 4 0 5 2 It is composed of red polyolefin coloring concentrate (quantum chemistry g (Rolling Meadows, IL)). The inner layer of the example tube has a weight of 28. /. VA copolymer of VA (Ultrathene T ^^ fat number UE 6 4 5-0 4: melt index = 3 g / 10 minutes: density = 0.95 g / cc: Quantum Chemical Company (Rolling Meadows, IL)) Composition, in which the unstained dye is used. By using the red dye in the outer surface of the tube of Example 2 3-2 6, the two-layer structure of the tube can be clearly seen by the eyes. Example 2 The individual layer thicknesses of the two-layer pipe fittings 3-2 6 were measured by optical microscopy in accordance with the procedure outlined in Example 1 2-2 2. Due to some misalignment of the die pin of the extrusion hole, some tube samples are asymmetrical. Therefore, the average thickness of the inner layer and the outer surface and the total layer thickness of the example pipe fittings are recorded in micrometers and shown in Table 8. Comparing a series of eight single-layer laminated pipe construction systems made from several different EVA and ethylene n-butyl acrylate (EBA) copolymer resins (Quantum Chemical Company, (Rolling Meadows, IL). Using special £ v A and EBA copolymer resin, including: (G) EnatheneTN / ^^ Grease number EA 705-009: .5. /. Acrylic acid n-butyl vinegar (nB A); Melt index (Μ 丨) = 3 g / 1 10 minutes (H) EnatheneTM resin number EA 7 19-009 ·· 19% η · ΒΑ: MI = 0.3 g / 10 min: -40-

J (please read the precautions on the back and then fill in this page. J Pack · II, this paper is used for the standard size 4 of the Chinese National Soap (CNS; Μ specification (21〇χ297 mm) printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Preparation A7 B7 5. Description of the invention (38) Fat number NA 420: 2.5./. VA: ΜΙ = 2.5 g / 10 min: (1) 6 6 丨 丨 than 61 ^ 1 ^ resin number ΝΑ316-138: 6 % VA: MI = 丨 .3 g / 1 0 minutes: (K) LmratheneT’vyi fat number UE637-000: 9% VA: MI- = 3.2 g / 1 10 minutes: (L) UltratheneTIvy ^ fat number UE 656003 : 12.5% VA: MI = 5.5 g / 10 min: (M) UltratheneTM tree month number UE 63 1-000: 19% VA: Μ 1 = 2.3 g / 10 min: and (N) UltratheneTM resin number UE 645 -04; 28./.VA: ΜΙ = 3 g / 10 minutes 3 The polymer resins of these EVA and ΕΒΑ are extruded into a pipe fitting, which uses a 2.5 cm cylindrical Kill ionTM extruder, And a single layer hole die with a central pin of 0.6 cm, and a 0.5 cm bushing in the empty slot barrel above the extrusion line. Comparative example G-N The conditions of the extrusion machine for laminating pipe fittings, It is shown in Table 9. The percentages of n-Β A and VA and the layer thickness (in microns) of Comparative Example G-N fittings are shown in Table 0. Comments on f Example 1 9-2 6 Single-layer pipes from Ε Β A copolymer and Ε VA copolymer with η-Β A and VA content of 19% or less are stiff, easily kinked, and often cloudy or milky in appearance In contrast, the EVA copolymer pipe fittings with a VA content of 28% are flexible and resistant to kinking, but also have a sticky feel and the island is scratched. The construction of single-layer pipe fittings has been evaluated and The case of the multi-layer tube of the example of the garment application 3 Example 2 7-3 5 All are two layers of EVA or VA / EBA. A series of two-layer pipe fittings are made from -41-_ _ with different percentages of V Α content This > standard applies to China National Standard (CNS) Λ4 specifications (21〇Χ29Ϊ? Ϊ1 ~ ^ 1 ^ 1 HH 1.11 «— ^ ϋ-rl ws. Τα (please read the precautions on the back before filling in this page) Ministry of Economic Affairs The paper printed by the Central Bureau of Standards and Staff's Consumer Cooperative uses the standard of Chinese national paper () Α4 said grid (2 Κ κ 297 public director) A7 B7 ____ Described invention is the combination (39) E V A of, and prepared from e V A copolymer (28 wt. / 〇 V A) in combination with different percentages of eta-BA content of eBA copolymer. All of the EVA and ESA resins used in these tube construction examples were obtained from Quantum Chemistry (Rolling Meadows, IL). The special EVA and EBA resins used by Quantum Chemical Company include: (丨) EnatheneT! VM · ^ Fat No. EA 705-009: 5% n-butyl acrylate (n_BA): (MI) = 3 g / I 0 min : (2) EnatheneTM resin number EA 7 19-009: 19% n-BA: V1I = 0.3 g / 10 minutes: (3) PetrotheneTivH # Lipid number ΝΑ 420: 2.5% VA: MI = 2.5 g / 10 minutes: (4) 卩 61; 1'〇1: 1161161 '^ 4 resin number NA316-138: 6% VA: MI = 1.3 g / 10 minutes: (5) UltratheneTM resin number UE 63 7-000: 9% VA : MI = 3.2 g / 10 min: (6) UltratheneTM resin number UE 65 1-109: 12.5. /. VA: Μ 1 = 0.45 g / min: (7) UltratheneTM resin number UE 63 1-000: 1 9% VA: ΜΙ = 2 3 g / 10 minutes: and (8) UltratheneTM resin number UE 645-04: 28% VA: MI = 3g / 10min. These resins were co-extruded to form different tube constructions in Examples 2-7-3 5. The same extruder, multi-layer hole die, central pin and draw sleeve as used in Examples 1-9-22 were used. The specific extruder conditions for the two-layer E VA / E VA co-extrusion pipe fittings of Example 27-3.3 are shown in Table 11 and the two-layer EVA / EBA co-extrusion pipe fittings of Examples 34-35 Then, in Table 12 3, the average thickness of the inner layer, outer surface, and all layers of the pipe fittings of Examples 27-35 is shown in microns, and is shown in Table 13. Example 27_35 Multi-layer tube confirmed that, in the inner layer of E v A with a VA content of 28%, individually add -42--with a VA or n-BA content of 19% or less (please read first Note on the back and then fill out this page) 袈. A7 B7 Printed by the Employee Consumer Cooperative of the Central Bureau of Economics of the Ministry of Economy V. Description of Invention (4〇) The thin outer surface of E v A or EBA copolymer can provide a variety of properties , Anti-scratch and flexible, and environmentally compatible pipe fittings. 6-41 is a three-layer pipe fitting of EVA or EVA / EBA. Six three-layer co-extruded pipe fittings with the same form as shown in Figure 2 of this article are made from EVA copolymer combinations with different percentages of VA content and from Combination of EVA copolymer (28% VA) and EBA copolymer (丨 9% n_BA) < All EV a and EBA wax used in the construction examples of these pipes are obtained from the special EVA and EBA resins of Quantum Chemical Company (Rolling Meadows, IL), including: (l) EnatheneTM resin number EA719-009 : 19% n-BA: MI 0.3 g / 10 minutes: (2) PetiotheneTM number NA 3 16-138: 6% VA: MI 1.3 g / 10 minutes: (3) UltratheneTM resin number UE 637-000: 9 % VA: MI = 3.2 g / 10 min: (4)? Numbered with 1-(^ 1 ^ 1 ^ 1 ^ 1 resin number UE 63 Bu 000: 19% VA: MI = 2.3 g / 10 min: (5) UltratheneTM Resin No. UE 645-04: 28./. VA: MI 2 3g / 10min. This resin was co-extruded into the three-layer pipe structure of Example 36-4 1 and a single 2.5 cm cylinder was used for the middle layer system Κιm〇nT M extruder, and use two 1 _ 3 cm round 茼 R andcas 11 e MicrotruderTM extruder for the inner and outer surface shell ij. Fix the three squeeze machine to a 0.6 cm center pin Multi-layer hole die, and use a 0.5 cm bushing in the empty slot barrel above the extrusion line. About the specific extruder for EVA / EVA / EVA and EBA / EVA / EBA co-extrusion pipe fittings The parts are shown in Table 1.4. The average thickness of the inner layer, the middle layer, the outer surface and all the tube layers are shown in Table 15 ___ -43- This paper size applies to the Chinese girl's standard (CNS) A4 specification (2! 0. < 297mm) ml flu · flu ^ —mr * ιϋ ^^^^ 1 1 ~ ^ free,-° (please read the precautions on the back before filling this page) Central Ministry of Economic Affairs Printed by the Bureau of Standards and Staff Consumer Cooperatives A7 __B7 V. Description of the invention (41) The multilayer tube of Example 36-4 1 was confirmed to have a VA content of 28. / + + 'In the EVA layer, individually add VA or η-BA The thin outer surface and the thin inner layer of the EVA or EBA copolymer with a content of less than 90% / Golf ft are a good structure according to the present invention. In particular, this structure provides a toughness 3. Anti-scratch pipe fittings, which maintain the flexibility of 28% VA containing EVA cores protected by the durable inner and outer surfaces, and are environmentally compatible due to the lack of gas-containing materials. Example 4 2-4 4 ABA three-layer pipe fittings Three ABA three-layer pipes composed of an inner layer (B) and outer and inner surface layers (a) , Based multilayer hole in the mold of Example 1 were pushed out, and with the specific conditions shown in Table 1. The A-layer of each example 42-44 pipe fitting is composed of zinc-doped ionomer resin (EMAZ) of ethylene / methacrylic acid copolymer, which can be "Surlyn τ M Shuyue No. 1 652", city Purchased from EI Du Pont de Nemours (Wilmington, DE). The B-layer of each of the Examples 42-44 pipe fittings has a weight of 28. /. EVA copolymer with VA content, which can be 111 〖丨 such as 1 ^ 1 ^ 1'1 " 1 resin number UE 645-04 1 1: melt index (Μ I) = 3 g / 10 minutes: density = 0.95 g / cc: City Structure obtained from Quantum Chemical Company (Rolling Meadows, IL) ° Outer diameter, inner diameter, load at 50% strain, stress at 50% strain and Young's modulus, all using the above test method Determination. The results are shown in Table 16. " Surlyn τ M 1 652 " Resin has a relatively high modulus, _ -44- This paper scale applies the Chinese National Standard (CNS) A4 specification (210/297 male carry 1 (please read the precautions on the back before filling in This page) installed,-mouth A7 B7 printed by the Ministry of Economic Affairs Central Bureau of Standards for consumer cooperation V. Description of invention (42) Therefore, the addition of "SurlynTM ι 652" tree, called the content, will increase the tensile strength and Young's modulus. The pipe fittings in these meetings + ~~ are comparable to the plasticized PVC in tensile strength, but I 2 ~ has a lower South's modulus and rigidity. Single-layer pipe fittings were extruded according to Comparative Example F and the description in Table 3. This pipe fitting became zinc-doped ionic bond polymer resin of ethene / methylpropionic acid (EMAA), which can be " SudynTM resin number 1652 ", commercially available from Dupont Nemours (Wilmington, DE). Outer diameter, inner diameter, stress at 50% strain and stress at 50% strain and Young ’s modulus are all The above test method was used for measurement. The results are shown in Table 16. fj3 4 5-47 A three-layer pipe fittings three The inner layer (B) and the outer layer and the inner layer surface layer (a) of aba are composed of two layers of official parts, which are co-extruded from the layer I tube die described in Example 丨, using the specifics shown in Table 1. Condition 3 Each layer 45-47 of the pipe fittings contains an ethylene / methacrylic copolymer with zinc-doped ionomer resin (EMAZ), which can be SuHyn TM resin number AD 8255 ": melt Index (Μ I) = 4 grams / 10 cents. Li city concealed from Ε. I. Du Pont de Nemours company (Wilmington, DE) ο each of the 45-47 pipe B layer of each instance, all by 2 8 The weight% v A is composed of yin., Li \ EVA copolymer, which can be ultrathene but μ resin number ue HI HB ^ im ^ l In— ml Bm .. ml tm 洚 -V * (please read the note on the back first Please fill in this page again.) Wood paper size 45- A4 (21GX1 '? 7g)) Printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative A7 B7 V. Description of invention (43) 645-04: MI = 3g / 1 0 minutes: Density = 0.95 g / cc: commercially available from Quantum Chemical Company (Rolling Meadows, IL). Inner pour, inner and outer layer thickness, relative layer thickness, outer diameter, inner At 50% strain of the load, the stress at 50% strain, Young's modulus, from 50% strain recovery properties of kinks and / re-kink resistance, were measured using the test method. The results are shown in Table 16. Example 4 8 ABA three-layer pipe fittings An ABA three-layer pipe fitting consisting of an inner layer (B) and outer and inner surface layers (A) is co-extruded from the multi-layer pipe orifice described in Example 丨 and uses Table 1 The specific conditions shown in Example 4 The A layer of the pipe fitting is composed of ionic bond polymer resin doped with sodium / methacrylic acid (EMAS) by sodium, which can be " SurlynTM resin number 160 1B ", commercially available from Ε · I. Du Pont de Nemours, Inc. (Wilmington, DE) ° Example 4 Layer B of 8 pipes, which contains an EVA copolymer with a VA content of 28% by weight, which can be " UltratheneT M resin number DE 645-04 ": Μ 卜 3 G / 1 10 minutes: density = 0.9 5 g / cc: commercially available from Quantum Chemical Company (R ο 11 ing Mead 〇ws, IL) 3 outer diameter, inner diameter, load at 50% strain, at The stress and Young's modulus at 50% strain are measured using the above test method. The results are shown in Table 17. Pipe fittings are transparent and have no obvious layer incompatibility. It is extremely stiff and extremely strong. -46- Too paper size is applicable to China National Standard (CNS) Α4 specification (ΉΟΧ 297 male seam) n ^ i ....... I tl ^ im ^ i vm. Ml 1 1- flu It ϋ · —-1 rabbit,-& (please read the precautions on the back before filling in this page) A7 Β7 V. Description of Invention (44)

Comparative Example P-S Bilayer pipe fittings were extruded as described in Comparative Example F and Table 1 or 3. The pipe fitting in the comparatively poor example p is an ethylene / methacrylic acid (EMas) ion-bonded polymer resin substituted by sodium, which can be "SurlynTM resin No. 160 1B 'commercially available from EI Du Pont de Nemours ( Wilmington, DE). The pipe fitting in Comparative Example q is an ethylene / methacrylic acid (EMAZ) zinc-doped ionomer polymer resin, which is commercially available from Euri SuriynT μ 樹 月 € 'No. 4 9020'. I. Du Pont de Nemours Company (Wilmington, DE). The pipe fitting of Comparative Example R is composed of ethylene / butylene copolymer (Ε B), which can be "Exact resin number 4〇24": μ Bu 3 8 Brother / Knife clock · Density = 0.885g / cc: commercially available from Exxon Chemical Company (Houston, TX) 3 The pipe fittings of Comparative Example s are composed of stupid ethylene butadiene block copolymers, which can be made of Kraton τ M resin No. K270 1, 'commercially available from Shell Oil Company (Houston, TX). The outer diameter, inner diameter, load at 50% strain, stress at 50% strain, and Young's modulus are all measured using the above test method. The results are shown in Table 17. Example 4 9 Du-printed by the consumer cooperation of the Central Standard Falcon Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) ABA three-layer campware consists of an inner layer (B) and outer and inner surface layers (A) The a BA three-layer part is co-extruded from the multi-layer tube die described in Example 丨, using the specific conditions shown in Table 1. Example 4 The layer A of 9 pipe fittings is composed of ethylene / methacrylic acid (EM AZ) ionic bond polymer resin, which can be "SurlynT Ｍ 树 丨] Subject No. -47- This paper size is applicable to Chinese national standards (CNS) Α4 specification (210 to 297 mm) A7 B7 printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Invention description (45) 902 0 ", the city concealed it from EI Du Pont de Nemours (Wilmington, DE ). Example 4 Layer B of 9 pipe fittings contains EVA copolymer with a VA content of 28% by weight, which can be "UltratheneTM resin No. LIE 645-04": M I = 3 g / 10 min: density = 0.95 g / cc: commercially available from Quantum Chemistry Company (Rolling Meadows, IL). The outer diameter, inner diameter, load at 50% strain, stress at 50% strain, and Young's modulus are all measured using the above test method. 3 The results are shown in Table 17. Pipe fittings are transparent and have no obvious layer incompatibility. Its Young's modulus is higher than that of Examples 1-I 2. Example 5 0 EMAZ three-layer pipe fittings An ABA three-layer pipe fitting consisting of an inner layer (B) and outer and inner surface layers (A) is co-extruded from the multi-layer pipe orifice described in Example 1 and uses Table 1 Specific conditions shown in °° Example 5 0 The A layer of the pipe is composed of ethylene / methacrylic acid (EMAZ) ion-bonded polymer resin doped with zinc, which can be " SurlynTM resin No. 1 6 5 2 B ";, Commercially available from EI DuPontde Nemours (Wilmington, DE) = Example 5 0 B layer of pipe fittings, which contains ethylene / butene copolymer (EB), which can be " Exact resin number 4024 ″: Μ 1 = 3.8 g / min: Density = 0.885 g / cc: City concealed from Exxon Chemical Company (Houston, TX) => outer diameter, inner diameter, load at 50% strain, stress at 50% strain And Young's modulus are measured using the above test method. The results are shown in _____- 48-_ This paper size is suitable for China National Purlin Standard (CNS) A4 specification (210X297mm) binding (please read the back (Notes to fill out this page) A7 B printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 7 --------- " '-------- V. Description of the invention (46) Table 1 7. In the pipe fittings are transparent, and there is no obvious layer incompatibility. Its Young's modulus is higher than that of Examples 1-12. 2. f Example 5 1 A three-layer ABA pipe consisting of an inner layer (B) and outer and inner surface layers (A) is the example in Example 1. The multi-layer tube hole mold described above was co-checked out and used the specific conditions shown in Table I. Example 5 1 Layer A of the pipe fitting was composed of ethylene / methacrylic acid (EMAZ) ion-bonded polymer resin doped with zinc, It can be " Surlyητ M resin No. 165 2 " 'commercially available from EI Du Pont de Nemours (Wilmington, DE). Example 5 丨 B layer of pipe fittings, which contains stupid ethylene butadiene block copolymer, which "Ki.atonTM resin number K2701" from Shell Oil Company (Houston, TX). Outer diameter, inner fe, load at 50% strain, stress at 50% strain and Young's modulus , Are measured using the above test method. The results are shown in Table 17 3 pipe is transparent, and there is no obvious layer incompatibility 3 its Young's modulus is higher than in Example 1- 1 2. Example 5 2 EVA three-layer pipe fittings An a BA three-layer pipe fitting composed of an inner layer (B) and outer and inner surface layers (A), using a 2.5 cm (1 inch) cylinder Kι 丨 丨 i〇 The extruder and the 1.3 cm (1/2 inch) cylinder Randcastle miniature extruder are echoed together. The extruder is fixed to a multi-layer hole die with a central pin of 0.5 6 cm.于 上 __-49-This paper scale is suitable for Zhongguanjiaxian (CNS) eight 4 materials (21Qx297 Gongqing) ----- 'nn t ^ i ^ n nn flm ^ i ·. Flu ^ i —in n ^ i ^ i (Please read the precautions on the back before filling in this page) A7 B7 V. Description of the invention (47) Use a 〇46 cm bushing in the empty slot barrel of the rubber sump 3 The specific extruder conditions are shown in Table 1 8 in. Example 5 The layer A of the pipe fittings is composed of ion-bonded polymer resin of ethene / methacrylic acid (EMAZ) with zinc substitution, which can be " Sur 丨 ynT Μ resin number 1 702 ″: Μ 1 = 14 g / 10 minutes: density = 0.941 g / cc: commercially available from E. I. Du Pont de Nemours Corporation (Wilmington, DE). Layer B system contains the following admixture, 80% EVA copolymer, which has 2 8% by weight VA content 'It can.' UhratheneTM resin number UE 645-04,

: M I = 3 g / 10 min: density = 95 g / c. : Commercially available from Quantum Chemical Company (Rolling Meadows, IL), and 20% EVA copolymer, which has a weight of 31. /. VA content, which can be ”uitratheneTM resin number UE 63 8-3 5 ": Μ I = 2 4 g / 〖0 minutes: density = 0.95 g / cc: commercially available from Quantum Chemical Company (R 〇11 ing Mead 〇ws, IL) => Use a lower molecular weight '' UltratheneTM resin number UE 638-35 '' to further soften the inner layer. About the inner layer (A), inner layer (B), outer layer (A), The average thickness (micron) and resistance to kinking / re-kinking of all tubes are shown in Table 21: · Printed by the consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) Example 5 3-5 5 EMAA three-layer camp three ab A three-layer pipe fittings consisting of an inner layer (B) and outer and inner surface layers (a), which are extruded using a 2.5 cm (1 inch) cylinder Κιηιοη The machine and the 1.3 cm (1/2 inch) cylinder Randcastle mini extruder are co-extruded. The extruder is fixed to a multi-layer hole die with a central pin of 0.56 cm, which is used in the Shangsheng Ϊ tank A 0.46 cm sleeve ^ specific check-out machine conditions are 50 copies of this paper standard is applicable to the Chinese dome Falcon (CNS> A4 specification (210X797 mm) A7 _ B7 printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description (48) is shown in Table 18. Example 5 3-5 5 A layer of pipe fittings Contains an ethylene / methacrylic acid copolymer (EMAA) resin, which can be '' N ucrelTM resin number 960 ": Μ I = 6 0 dg / min: density = 0.94 1 g / cc: commercially available from Ε. 丨 .Du Pont de Nemours (Wilmington, DE) ° B layer system contains the following blend, 80% EVA copolymer, which has a VA content of 28% by weight, which can be "UltratheneT M resin number UE 645 -04 ,,: M I = 3 g / 10 min: density = 0.9 5 g / cc: City Structure obtained from Quantum Chemical Company (Rolling Meadows, IL), and 20 ° / 〇Ε V Α copolymer, which With 3 1% by weight VA content, it can be ”UltratheneTM resin No. u E 63 8-3 5 ": Μ I = 2 4 g / 10 min: density = 0.95 g / cc: market gambling from Quantum Chemical Company (Rolling Meadows, IL), use the lower molecular weight `` UltratheneTM resin No. UE 63 8-3 5 " to further soften the inner layer. Inner layer (A) 5 5, the inner layer (B), the outer layer (A), an average thickness (m) of all layers and the kink tube / re-kink resistance, line 2 shown in Table 1. Example 5 6-5 8 EMAA three-layer pipe fittings Three AB ^ three-layer pipe fittings consisting of an inner layer (B), an outer layer (A) and an inner layer (C), using a 2.5 cm (1 inch) cylindrical Kmlon Extruder, 1.3 cm (1/2 inch) cylinder Randcastle mini extruder and 19 cm cylinder Wayne extruder, the extruder is fixed to a multi-layer hole with a central pin of 0.56 cm mold. Use one 0.46 gong-51 in the empty tank with glue on it-the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm 1 'I-I .1--I nn m---I — — ^ ― I Hi I— — ml II ^ i (please read the precautions on the back and then fill in this f) A 7 B7 Five 'Invention Instructions (49) printed by the Consumer Standardization Bureau of the Central Standard Rating Bureau of the Ministry of Economic Affairs (49) The specific extruder conditions are shown in Table 19. Example 5 The layer A of β-58 pipe fittings contains ethylene / methacrylic acid copolymer (EM AA) resin, which can be "NucrelTM resin No. 9" ό 0 '': Μ I = 6 0 dg / min: density = 0.94 1g / cc: commercially available from E. 丨 Du Pont de Nemours (Wilmington, DE). Layer B system contains the following blends Substance, 80% EVA copolymer, which has a content of 28% by weight ^ eight, which can be " UltratheneT ^^^ i fat number UE 645-04 ": Μ 丨 = 3 g / 1 10 minutes; density = 0.9 5 g / cc: commercially available from Quantum Chemical Company (Rolling Meadows, IL), and 20% EVA copolymer, which has 31% by weight./.v A content, which can be used, UltratheneTM resin number ϋΕ 63 8 -3 5 ″: M I = 24 g / 10 min: density = 0.95 g / cc: commercially available from Quantum Chemical Company (R 〇1 丨 ing Mead 〇ws, IL). Use lower molecular weight UltratheneTM resin number UE 638-35 ", to further soften the inner layer C layer system contains any of the following copolymers, EVA copolymers with 6% by weight VA content, which can be "PetrotheneTM resin number NA 3 1 6- 1 3 8 ″: Μ I = 1.3 g / 10 min. • commercially available from Quantum Chemical Company (Rolllng Mead Ows, IL), or having a weight of 12.5./〇VA content of ethyl acetate / ethyl acetate 'Associated vinegar copolymer (EVA), which can be "UltratheneTM resin number UE 65 1-1 09": M I = 0.45 g / I 0 minutes: commercially available from Quantum Chemical Company (Rolling Meadows, IL) 3 Example 5 9 -6 8 EMAA three-layer pipe fittings consisting of ten inner layer (B), outer surface layer (A) and inner surface layer (C) -52- This paper scale is applicable to the threshold threshold home standard (CNS) A4 specification (210 > 〇97mm) (Please read the precautions on the back before filling out this page) — Yiding A7 -------- B7 V. Description of invention (5〇) The ABC two-layer official part 'uses a 2.5 cm (丨 inch) round chrysanthemum KUHon tapping machine, a 1.3 cm (1/2 inch) cylindrical Randcastle mini extruder and a 19 cm cylindrical Wayne extruder. Extrusion, the extruder is fixed to a multi-layer hole die with 0.:> 6 cm central pin lock. Use a 0.46 cm draw sleeve in the glaze of the empty slot. The specific extruder conditions are shown in Table 2. The layer a of the 59-68 pipe fittings in the case of 'includes ethylene / methacrylic acid copolymer (EMAA) resin' which can be used, 'NucreiTM resin number 96〇': MI = 60 dg / min: density = 0.941 g / cc: commercially available from e. I. Du Pont de Nemours (Wilmington, DE) => B layer system contains the following shoulder compound, 80% EVA copolymerization Thing, which has 28 weight. /. VA content, which can be ”uitratheneT M resin number UE 645-04: M I = 3 g / 0 min: density = 0.95 g / c ^: commercially available from Quantum Chemical Company (Rolling Meadows, IL), And 20% EVA copolymer, which has a VA content of 31% by weight, which can be ”uitratheneT M resin number UE 6 3 8-3 5 ": Μ I = 24 g / 1 〇 minutes: density = 〇. 9 5g / cc: commercially available from Quantum Chemical Company (R ο 11 ing M ead 〇ws, IL) 3 Use a lower molecular weight "UltratheneTM resin number UE 638-35" to further soften the Central Standard Falcon of the Ministry of Economic Affairs Printed by the Bureau Staff Consumer Cooperative 1 1 1 ^^ — ^ ϋ— ^ nt In l ^ n— nn ^ p (Please read the precautions on the back before filling in this page) The C layer system contains ethylene / methacrylic acid (EMAZ) Ion bond polymer resin doped with zinc, it can be "SurlynTM resin No. 丨 702 ": Μ I = I 4 g / 10 min: density = 0.941 g / cc: City concealed from EI DuPontde Nemours company (Wilmington, DE) 0 About the inner layer (C), inner layer (B), outer layer (A), average thickness of all tube layers (microns) and kinks / Re-kink resistance is shown in Table 2 I = -53- This paper scale is applicable to the Chinese National Standard Falcon (CNS) A4 specification (210X 297 mm) A7 B7 Printed by the Employees Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs Description of invention (51

--------- :: Table-- (please read the precautions on the back before filling in this page) — one by the inner layer (B), outer surface layer (A) and inner layer surface (C) The AB C three-layer pipe is composed of a 2.5 cm (1 inch) cylinder Kil lion extruder, a 1.3 cm (1/2 inch) cylinder Randcastle mini extruder and a 1.9 cm cylinder Wayne extruder Coextrusion, the extruder is fixed to a multi-layer hole die with a central pin of 0.56 cm. Use a 0.4 6 cm bushing in the empty slot barrel. The specific extruder conditions are shown in Table 20. f Example 6 The layer A of the 9 pipe fittings contains zinc-doped ionic bond polymerized ethylene / methacrylic acid copolymer (EMAZ), which can be used, S urlynT M resin number 1 702 ": Μ I = 1 4 g / 1 0 minutes: density = 0.94 1 g / cc: municipal iV from E. I. Du Pont de Nemours (Wilmington, DE) ° B layer system contains the following blend, 80% EVA copolymerization Material, which has a VA content of 28% by weight, which can be, uitratheneTM resin number UE 645-04 ,: Μ I = 3 g / 10 min: density = 0.95 g / cc: commercially available from Quantum Chemical Company ( Rolling Meadows, IL), and 20% EVA copolymer, which has a weight of 31. /. VA content, it can be, UltratheneTM resin No. UE 638-35 ”: Vn = 24 g / 10 min: density = 0.95 g / cc: commercially available from Quantum Chemical Company (Rolling Meadows, IL) -1 The lower molecular weight "UltratheneTM resin number UE 638-35" to further soften the inner layer. The C layer contains ethoxyl / methylpropionic acid (EMAA) resin, which can be "N ucrelTM resin number 9 6 0," : Μ I = 60 minutes / 10 minutes: density = 0.941 brother / cc: the city from EI Du Pont de Nemours company -54- This paper is selected to apply the Chinese National Standard (rNS) A4 specification (210X297 mm) A7 B7 printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (52) (Wilmington, DE) ° Example 7 0 Pipe fitting clamping test. The pipe fitting of Example 1 1 is connected to the IV bag. Water flows through this pipe fitting To remove any air 3, clamp the lumen of the tube using a tightening clamp until the water flow stops, fill this bag with 1000 mL of water, and let it sit for two minutes. Remove the clamp and remember The time required for the green to drain 1000ml of water. Flow through the tubing to remove the air again. Clamp the lumen for 45 hours and fill the bag with 1000 ml of water again. Remove the clamp and immediately start the flow again. The knife is drained The time required for this bag is 292 seconds. The time required to drain this bag after 4 5 hours is 270 seconds. The tube wall from Example 11 has sufficient resilience and is completely recovered after being pinched for 4 5 hours. Example 7 1 The study of extraction and extraction was carried out on ABA multilayer tube samples. For example, the manufacturer described in Example 10 used “SurlynTM resin No. 9320 as the inner and outer layers. This resin is a kind of zinc Doped ionomer resin: used in Example 7 "SurlynTM resin No. 832CT is used as inner and outer layer, which is a sodium-doped ionomer resin: and used in Example 18 "SuiiynTM resin No. AD 8255", which is a zinc-doped ionomer resin. The inner layer in each of Examples 10, 7, and 8 is `` ExactTM resin No. 4028 ''. The blame for the length of 203.2 cm (80 inches) The tube is cut into 5.08 cm (2 inch) sections, and placed in a 50 ml bottle with a foil-lined cap. _-55 -_ This yi moxibustion standard is applicable to the Chinese National Standard (CMS) A4 specification (210X 297mm) (please read the notes on the back before filling in this page) Policy A7 Central Government Bureau of Economic Affairs Employee Consumer Cooperation Du Printed B7 V. Description of Invention (53) 20 mL of extraction fluid, such as medical grade saline, Glucose or fat emulsion is added to each bottle containing the tube sample, and the bottle without tube. Invert the bottle on a 2 rpm spinner for 4 days. Analyze the content of zinc or sodium in the extraction fluid. Analysis of the control extraction fluid without pipe fittings showed the contents of zinc and sodium 3 and the results are shown in Table 22. In addition, the trace organic substances in the glucose extraction fluid are analyzed. It was found that organic fragments with some carbonyl groups and some unsaturated bonds are in the range of a few parts per billion. (Please read the precautions on the back before filling in this page),-= 9 _- 56-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs B7 V. Description of the invention (54) Table 1 Example 1-12 of the three-layer pipe fittings (inner = inner layer: 1/0 = inner and outer layers) and comparative example BE Single-layer pipe fittings extrusion conditions Example No. 1-12 Comparison Example BD Comparative Example E In-layer I / O Single-layer single-layer cylinder (cm) 2.5 1.3 1.3 1.3 Section 1. Temperature (° C) 121 135 135 121 Section 2 Temperature (° C) 157 163 163 154 Section 3 Temperature (° C) 177 177 177 177 g # ^ 4CLP; ^ / l (X :) 179 177 177 177 Dissolution tube temperature (° c) i Borehole mold temperature (° c) 182 182 182 179 RPM 5 5-30 25 20 Melting temperature (° C) Pressure (Mpa) 8.3 Amps 2 Internal air pressure (cm h2o)-empty tank: 丨 Water temperature fc) 13 13 13 21 Puller: Speed (cm / min) 152 152 152 2804 -| Clothing-- (Please read the precautions on the back before filling in this page) -57- This paper uses the Chinese National Standard (CNS) A.4 Specification (2 丨 0X297mm) V. Description of Invention (55) Comparative Example D printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy Example 4-6 A / B / A = SurlynTM 932〇mVA / Siuiyn1M 9320 Comparative Example C 1 Comparison Example B Example 1-3 A / B / A = Sui1yn1N1 8320 / IIVA / Sui.lynTM 8320 Comparative Example A (PVC) Table 2 Example 1-12 Inner, inner and outer layer thickness of three-layer (ΛΒΑ) pipe fittings, relative thickness Thickness, size, physical properties, resistance to kinking / re-kinking, and comparative example AE Size, physical properties and resistance to kinking / re-kinking 0.01852 0.01626 0 01265 0 01575 0.01303 0.01161 Thickness Λ = internal κ = internal external 恻(Cm) 1 0 03292 0.04724 0.04806 0,04420 0.04458 0.05390 0 01646 0 01394! 1 0 01041 ί 0 01499 0.01097 0.01003 100/0/0 27/48/24 21/61/18 1 18/68/15 100/0 / 0 21/59/20 19/65/16 15/71/13 0/100/0 Relative thickness A / B / A 0.381 / 0.297 0.412 / 0.274 0.417 / 0.262 0.394 / 0.254 0.401 / 0.297 0 424 / 0.274 0.409 /0.271 ί 0 409 / 0.259; j 0.412 / 0.310 0D / ID (cm) 2.24 3.26 2.75 2.65 j 3.09 2.91 2.75 3.95 payload at 50% strain 4 ^ 00 L ^ J 〇00 1, a j-j '-j 〇〇 stress at 50% strain K) ο 25.6 23.8 I 23.1 K); 21.7 | 25.0 20.9 18-6-20.4 Young's modulus 〇o from 50 % Resilience 2.6 / 2.1 2.6 / 2 4 2,8 / 2.6 2.6 / 21 2.8 / 2.7 2.7 / 2.5 I 1 6 / < l, 2 2.5 / 2 1 Kink / Kink (please read the notes on the back first Please fill in this page for details) This paper is applicable to the Chinese National Standard (CNS) A4 (21 Ο X 297 mm). V. Description of the invention (56) A7 B7 The Ministry of Economic Affairs, Central Bureau of Precincts and Staff Cooperative Printing and Printing Μ 〇 〇OO 1 Comparative Example π Example Table 2 (Grade) Example 丨 -12 Inner, inner and outer layer thickness, relative layer thickness, physical properties of kinks, kinking / re-kinking resistance of three-layer (ΑΒΑ) pipe fittings, and Comparative Example Α-Ε size, physical properties and resistance to kinking / rekinking 0.02096 | 0,01798 1 0.01354 0 02098 0.01816 0 01257 Layer Thickness A = Inner B = Inner A = Outer (cm) 0.03073 0.03973 0.04806 0 03673 0 05118 0 04681 0 01816 0,01725 0 01 151 | Example 10-12 A / B / A = SurlynrM 9320 / ExactTM 0 01725 | 0.01321: 0.01048 | Example 7-9 A7B / A = Surlyn ™ 8320 / Exact ™ 4028 / Surlyn ™ 30/44/26 24/53/23 19/66/16 28/49/23 22/62/16 18/67/15 0 / 100/0 relative layer thickness Α / Β / Λ 0.389 / 0.249 0.401 / 0.251 0.401 / 0.297 0 414/0 264 0.409 / 0.244 0.404 / 0.264 0.412 / 0,279 0D / 1D (cm) 2.84 2 97 2 84 2 89 丨 2.71 1 ^ _1 Load at 50% strain 40,000400 / Surlyn ™ 9320 o Stress at 50% strain 23.8 22 8 23: 4 ----- K) 19 2 20 6 17 0 8320 Young's modulus 〇o Resilience from 50% strain 2.6 / 2.3 2.7 / 2.5 I 2.9 / 2.6 I 3 0/2 8 3 1 / 3.0 3 2 / 3.1 2.3 / 1.3 Kink / Re-knot • (Clothing (please read E first Note on the back and then fill out this page) This paper scale is applicable to the Chinese National Standard (CNS) grid (210 X 297 mm) 5. Description of the invention (57) A7 B7 Printed List of Employees Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 3 Example 13 -17 Three-layer pipe fittings (inner = inner layer: 1/0 = inner and outer layers) and comparison examples F and R military layer pipe extrusion conditions Example No. 13-17 Comparative example F Comparative example R In-layer I / O Single layer cylinder (cm) 2.5 1.3 1.3 1.3 Zone 1 temperature (° c) 163 141 154 121 Zone 2 temperature fC) 166 174 177 177 Zone 3 temperature fC) 182 182 196 204 Zone 4 CLP temperature (° C) 193 188 221 216 Temperature (° c)! Hole mold temperature rc) 191 191 207 216 RPM 26.8 56.5 Melting temperature (° c) 182 156 Pressure (Mpa) t ^ L, j 14.1 3.4 7 丨 Amps 1.8 4-4.5 2!:? 丨Internal air pressure (centimeter h2o) [1 ·. Slot empty barrel: water temperature fc) 21 21 21 21 | Puller: Speed (cm / min) 594 594 305 5791 -60- This paper scale is applicable to the Chinese national standard: f -(CNS) A4 specification (210X297 mm) 1!--Nn util mt ^ fln «I nn n ^ — —1 tooth i (please read the precautions on the back before filling in this page) V. Description of invention (58 ) A7 B7 Comparative Example F 3: Printed by the Employees ’Consumer Cooperative of the Central Standards Bureau of the Ministry of Economics: Comparative Example E tiH 10-15 A / B / A = Surlyn ™ 8255 / Exacl ™ 4028 / Surlvn ™ AD 8255 -Ξ?} Table 4 Examples] 3-18 three-layer (ABA) inner and outer layers of inner and outer layer thickness, relative layer thickness, size, physical properties, kinking / re-kink resistance, and Comparative Examples A, EF Dimensions, physical properties and resistance to kinking / rekinking 0.01270 0.01549 0.016761 | 0.01092 0.01041 0.00914 Thickness A = inside B = inside A = outside (cm) 0.04750 0.03378 0.04039 | 0.04039 0.04343 0.04775 0.01092 0.01397 0.01575 0.01016 0.00889 0.00813 18/67/15 100/0/0 26/53/21 25/56/19 丨 | l9 / 67/15 | 16/71/13 _1 14/75/11 0/100/0 relative layer thickness Α / Β / Λ | 0.396 / 0.259 | 0.422 / 0.292 0.391 / 0.267 0.411 / 0.264 丨 | 0.412 / 0.2664 | 0.386 / 0.257 0.358 / 0.221 0.404 / 0.274 0.412 / 0.310 0D / ID (cm) 〇00 Ο k) -0 l / l ΚΪ bo Cn K) 2 K) 1 ^ 0 Lo 'o 1 Load at 50% strain Kj 00 00 Stress at 50% strain 25.2 / 23.0 (24.5 / 21.4 1 22.1 / 19.3 | 21.2 / 18.8 20.2 / 2L21 /14.4 /20.4 Yang Modulus of modulus 2.7 / 2.2 1 2.3 / 1.2 2.7 / 2.1 I [2.6 / 2.0 1 2.7 / 2.2 | 2.8 / 2.0 2.4 / 1.4 hO Ui K > Kink / Re-Kink-61-Table paper scale applies to China National Standards (CNS) A4 specification (2 丨 0X297 Gong Yann ^ i ^^^^ 1 1 n ·--1 I 1— nm n · ^ — ml — * "", v account (please read the precautions on the back before filling in this Page) Economy A7 B7 du printed by the Central Standards Bureau for employee cooperation V. Description of the invention (59) Table 5 Extruder conditions for the two-layer pipe fittings of Example 19-22 (IN = inner layer: OUT = outer layer) Example number 19 20 21 22 layer: IN OUT IN OUT IN OUT IN OUT Material:% VA EVA 28 EVA 6 EVA 28 EVA 6 EVA 28 EVA 6 EVA 28 EVA 6 Pressure: Outer cylinder (cm): 2.5 1.3 2.5 1.3 2.5 1.3 2.5 1.3 Zone 1 temperature (X :) 149 179 149 179 149 179 149 179 Zone 2 temperature (X :) 171 182 171 182 171 182 171 182 Zone 3 temperature re) 171 188 171 188 171 188 m 188 Zone 4 CLP temperature (X :) 171 193 171 193 171 193 171 193: Melting tube temperature (° C) 171 204 171 204 171 204 171 204 Hole mold temperature (° C) 174 174 L74 174 174 174 174 174 RPM 22 5 18 10 20 15 23 18 Melting temperature fC) 169 182 169 182 169 182 169 182 | force (Mpa) 17 16 17 19 18 11 18 11 Amps 2.0 1.3 2.8 1.0 2.8 1.3 2.9 1.2 internal air pressure '(cm h2o) 6 6 6 6 6 6 6 6 ㈣ 曹Bucket: I! Glue pressure (cm2) 25 25 25 25 25 25 25 25 1;: l Water temperature (V) 27 27 27 27 32 32 32 32 Puller: speed (male / Min) 265 265 265 265 | 265 265 290 290 --I — ^ 1— I 8 I- 1- 1-ml n ^ in ^ i-. ^ 1 ^ 1 ...... One V .¾, \, Cloud (please read the precautions on the back and then fill out this page) -62- Wood paper size is applicable to China National Silkworm (CNS) A4 specification _ (210X 297mm) A7 A7 Employee Consumer Cooperative of Central Bureau of Standards, Ministry of Economic Affairs Printed B7 5. Description of the invention (6〇) Table 6 Examples 19-22 The average thickness and total average thickness of the inner and outer layers of the two-layer pipe fittings, expressed in microns Example number Average inner layer thickness Average outer layer thickness Total average layer thickness 19 825 40 865 20 845 50 895 21 780 85 865 22 838 67 905 nn-----H ^^^ 1 I «—». Fmi nn nn UK 1 (please read the notes on the back before filling in this page) -63- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297). 5. Description of the invention (61) A7 B7. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy. 7 Examples 23-26 Pressure of two-layer pipe fittings Out-of-machine conditions (IN = inner layer: OUT = outer layer) Example number 23 24 25 26 layer: IN OUT ΓΝ OUT IN OUT IN OUT Material:% VA EVA 28 EVA 6 EVA 28 EVA 6 EVA 28 EVA 6 EVA 28 EVA 6 Extruder cylinder (cm): 2.5 1.3 2.5 1.3 2.5 1.3 2.5 1.3 Zone 1 temperature (° C) 149 179 149 179 149 179 149 179 zone Section 2 temperature (° C) 166 193 166 193 166 182 166 182 Section 3 temperature (° C) 166 188 166 188 166 188 166 188 Section 4 CLP temperature (X) 166 193 166 193 166 193 166 193 Melting tube temperature ( ° c) 166 163 166 163 166 163 1166 163 Hole mold temperature (° c) 171 171 171 171 171 171 171 171 171 RPM 23 17 23 22 23 12 23 6 Melting temperature (° C) 169 180 169 180 169 180 169 180 Pressure (Mpa) 18 10 18 1118 7 18 16 Amps 2.8 1.2 2.8 1.2! 1.9 1.0 1.9 1.0 Internal air pressure (cm2) 3 -Λ JJ; J i 3 Slotted nannan: Glue pressure (cm2 h) 75 1 Water temperature (° c) 21 21 21 21 18 18 18 18! Puller: Speed (cm / min) 259 259 259 259 259 259 259 259 -64- This paper scale is applicable to China National Standard (CNS) Ren 4 specifications (2丨 0X 297mm) --------- Set-- (please read the precautions on the back and then fill out this page) A7 A7 Employee Consumption of Central Standards Bureau of Ministry of Economic Affairs Printed by B7 V. Description of the invention (62) Table 8 The average thickness and the total average thickness of the inner and outer layers of the two-layer pipe fittings of Examples 23-26, expressed in microns. Example number Average inner layer thickness (/ i) Average outer layer thickness ( / i) Total average layer thickness (A ') 5 893 37 930 6 1063 76 1139 7 958 58 1016 8 943 58 1001: n ^ i -1 ^ 1 ^ 11 (m In 1 ^ 1 ^ 1 i ^^ i > 1-1-Order, va (please read the precautions on the back before filling in this page) -65- Caifenzhang standard is applicable to the Chinese National Standard (CNS) A4 specification (210X 297mm) A7 A7 Employee of Central Standards Bureau of Ministry of Economic Affairs Printed by the consumer cooperative B7 5. Description of the invention (63) Table 9 Comparative example GN single-layer pipe extrusion machine Condition layer: G Η IJKLMN Material:% VA-% n-BA EBA 5 EBA 19 EVA 2.5 EVA 6 EVA 9 EVA 12.5 EVA 19 EVA 28 Cylinder (cm): 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Zone 1 temperature (° C) 168 168 168 168 168 168 168 149 Zone 2 temperature (° C) 177 177 177 177 177 177 177 160 Zone 3 temperature (° C) 185 185 185 185 185 185 185 166 Zone 4 CLP temperature :) 191 191 191 191 191 191 191 166 Dissolution tube temperature (° c) 191 191 191 191 191 191 191 166 Hole mold temperature (° c) 193 193 193 193 193 193 193 171 RPM 20 16 19 17 17 17 16 16 Melting temperature (° c) 188 187 188 187 188 187 187 166 Pressure (Mpa) 12 21 13 16 12 20 17 0 Amps 1.2 2.0 2.0 1.6 1.8 丨 2.0 i 1.6: 22 Internal air pressure 5 (cm H20) 丨 5 5 5 -I -'- > i 3 i 3 0 Slot Drum: Glue pressure (cm2) 20 20 20 20 20 20 20 20 Water temperature (° C) 26 26 26 26 26 26 26 26 Puller: Speed (cm / min) 229 229 229 229 229 229 235 235 I --1111----11 I- · *-(please read the precautions on the back before filling in this page) -66-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0 侂 297mm ) A7 B7 printed by the Employee Consumer Cooperative of the Central Department of Economic Affairs of the Ministry of Economy V. Description of invention (64) Table 10 Comparative examples GN single-layer pipe fittings η-ΒΑ and VA percentage, layer thickness comparison example number ΕΒΑ EVA layer thickness content (% η -ΒΑ) content (% VA) (/ ^) G 5 — 635 Η 19 — 572 I… 2.5 635 J — 6 584 Κ — 9 559 L — 12.5 572 Μ — 19 572 Ν 28 597 i ^ i—-^^^^ 1 ml i ml «. N · ^ I--— i-I-— ^ ϋ—i Λ ^ 、! (Please read the precautions on the back before filling out this page) -67- This paper scale is applicable to the Chinese National Standard (CNS) 84 specifications (2 丨 OX29 ·? Public double) Printed secrets by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of Invention (65)

μ- · · 、 Xλ- ps 、, n: r Hr} Φ, ^ 7; rr > current ZΠ r〇 ^ > 3 C / Ί f 荈 η 2 d 荈 3ί »-τϋ% 'i η IP -^ ττ% r ^ s η ·· «—✓ · Ρ * ^ ΤΤ \ '^ J η Ρ κ > η IP-^ TA Γ: S- thin-two: j > > X Wei >: Tellurium Thin Ο K) 〇〇〇Μ 〇00 〇 \ Μ CN ο. CN ο ro m to〆00 、、 > z NJ H- Kaku T3-^ JJ '^ J-'; ί ir · / 十 I _ 尽__ Xin Yi, | _ | _ ZO j 〇r ^ i to ο K) o 〇〇UJ 〇ο S ο. Ο ο '-^ J ο. Οο GO NJ ο UJ NJ [J3-$ oc HK) • ^ Τχ '〇NJ O' 〇〇K) ο '' 'J stone σ' · ο. 〇 \ ο L »J cloud ο 00, > 5 u οο to Ο NJ O-〇〇〇Μ i heart stone ο ό οο οο οο Κ) ο: rn CA < > oc — K) Ά ο K > On 〇〇K) 厶 J ο 5: ο -J ~ ^ J ο ο ο ο 〇Ν 〇 \ 云 ο to m NJ〆OO,, > > —M 2: K) ο ίΌ ο K) o 〇〇K) = ο 〇Ν ο '^ J οο οο GO NJ: moc > oc H Κ) male K) g 〇 〇κ > 〇〇ο ο ss • -J 〇 \ ο. Ο θ 'Stone C >.5; VJ ο NJ lT! OO > > z II 3 ^ 3 NJ to o 〇〇ο ο ο ο ό '^ J — οο 00 οο NJ ο z —m ^ < a > oc H 〇C! — Κ) Ά ν〇NJ c > 〇NJ UJ ο CN -J ο ο ο ο ο UJ ο K) m OO: > 3 '-# J;! 々i-^ s. ι ^ 3; Ν_) Ά Ό K) c > 〇 UJ o ο -J ο 〇-, 〇 \ '^ J 00 CO II UJ ms < > oc · — ^ Κ) 念 to o 〇〇〇K) o GC — -J ^ 1 彐 o. Oc —. ο to ms > UJ ro to NJ O 〇00 〇 二 ο UJ οο 00 OO K) ~ ο zm ^ < > or— · NJ Κ) Ο K) o. 〇〇〇3; '-J o OO g K) mz L »J OJ Κ) Μ ο On g 〇OO S 5: K) -J ο OJ 00 00 OO K) ο zm 〇 ^ < > oc H (Please read the notes on the back before filling in This page) -68-This paper is suitable for the Chinese National Standard (CNS) Vi specification (210X 297mm) A7 B7 V. Description of the invention (66) The Central Standards Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative printed the table 12 Examples 34-35 Extruder conditions for two-layer pipe fittings (IN = inner layer: OUT = outer layer) Example No. 34 35 layers: ΓΝ OUT IN OUT material ° / 〇VA EVA 28 EVA 28% n-BA EBA 5 EBA 19 cylinder (cm): 2.5 1.3 2.5 1.3 Zone 1 temperature (C) 丨 149 179 149 179 Zone 2 temperature fC) 丨 163 182 163 182 Zone 3 temperature (1;) 166 188 166 188 Zone 4 CLP temperature (X) 166 193 166 193 melting tube temperature (X :); 166 166 166 166 hole die temperature rc) 171 171 171 171 RPM 16 12 16 12 Melting temperature fC) ί 166 179 166 179 Pressure (Mpa) 18 12 19 25 Amps 2.3 2.3 2.3 4.1 Internal air pressure (cm h2o) 0 0 0 0 Empty tank barrel: Glue pressure (cm h2o) 20 20 20 20 Water temperature (3c) 24 24 26 26 Puller: Speed (cm / min) 244 244 244 244 (Please read the precautions on the back before filling out this page) -69- This paper size is applicable to China National Standard (CNS) ) A4 specification (2! Ο X 29? Mm) A7 B7 V. Description of invention (67) Employee consumption cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs, duprinting of watchmaking 13 Examples 27-35 Inner layer, outer layer and header layer of two-layer pipe fittings Example of the average thickness of the inner layer outer layer header layer number thickness (//) thickness (/ 〇 thickness (V) 27 582 85 667 28 55 8 48 606 29 563 88 651 30 603 25 628 31 558 73 631 32 578 49 627 535 95 630 34 555 89 644 35 536 83 619 ^^^ 1-«^^^^ 1 n ^ — I 1 — ^^ 1 ---1-^^ I—1 f * ¾-νβ (please read the precautions on the back before filling in this page) -70- This paper size is applicable to China National Standard (CNS) A4 specifications (210X 297mm) A7

7 B 5 86 /-V clearly stated that the Ministry of Economic Affairs Central Standards Bureau Employee Consumer Cooperative printed sheets of paper>-~ v η 卜 ^ = 3, and ϋ- ~ L, 5 * ^ 5-c \ y. hr > *! T ϋ- mountain > one rn ^ NI 荈 «-d 2 1 Λ ·; £ ^ · η turn: 5 > -r- pS η IP diarrhea sn IP ^ TT% ^ J (¾ n P Vrv K) s / ¾ n IP -w »is produced q- n H- lacquer 1: ^ ·: 3? V cold SN -H- Wei 〆> 胬 NJ ο ο ο Κϊ ο 〇 \ C \ ON〇ho ΓΤ1 to〆oo:, > lr uj O '· —J t ^ o ο g ο ο tt 1 to ο L ^ J 〇〇GO oo K > o: ΓΠ w— < d NJ sC Μ 〇 \ Μ ο ο Two O 〇. 〇〇〇ό oo K > 〆OO Λ- > 3- to to ο Κ) ο ο ο 卜 ο L * J ο '-J o OJ GO 00 oo K) —- · -J o' ^ J tT: 〇 < > d Κ) Κ) ο to C \ o ο ο 卜 〇GO 3 ο 00 Μ ό o 0 — oo to '^ n K) 〆CO Λ- > 2- oo κ > κ > ο ο. ο ο '^ jo ο C: vC UJ oo oo NJ o'-^ jm '〇 < > d κ > Ί Κ) ο g ο ο NJ, 〇5; 〇〇O oom ^ < > > 2- o hJ r ^ J Ί Κ) ο ο ο o ro ο -j o 00 00 00 to o '一 jm; < 1 >! d to Κ) ο Ν- > ο ο o ο -Λ c > oo 石 ooo K) m 丨-to b〇ο NJ ο ο ο sc : ο Κ) 一 -j ό oo oo oo KJ s〇 '^ J mc ^ <: > d to Κ) ο Κ) 〇 \ ο ο Κϊ o' -J o 〇 \ 〇 \ 〇N 〇z \ 〇K): '上 m —〆 > 3- -P ^ Κ) Κ) ο κ > ο ο s? 3 -0' -J o '^ J 00 oo NJ' m < > —hd ^. '一 趣 二 / 0 = 々I'Mlr ^ —j / f) (please read the precautions on the back before filling in this page).

Ligong 7 9 X A7 A7 Printed B7 by the Employee Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs 5. Description of the invention (69) Table 15 Example 36-4 丨 Average of the inner layer, inner layer, outer layer and main management layer of three-layer pipe fittings Thickness Example No. Inner Layer Inner Layer Outer Layer Total Pipe Layer Thickness (/ · 0 Thickness (/ 〇 Thickness (/ i) Thickness (>) 36 88 492 57 637 37 72 512 62 645 38 56 785 32 873 39 • λ, 557 32 622 40 39 557 26 622: 41 102 534 34 670 (please read the precautions on the back before filling in this page) " *-° -72-This paper size is applicable to China National Standard Falcon (CNS) A4 specification (2丨 0X29? Public f) B7 V. Description of invention (7〇) Printed by the Ministry of Economic Affairs Bureau of Central Standards Employee Consumer Cooperative 1 Comparative Example F | On 5 Examples 45-47 A / BAMui. 丨 yn ™ AD 8255 / EVA / Surlyn ™ AD8255 || Comparative Example G | NJ | Comparative Example B 3 5 > Examples Table 16 Examples 42-47 Inner, inner and outer layer thickness of three-layer (ΑΒΛ) pipe fittings, relative layer thickness, size, physical properties, kinks / Re-kink resistance, and the size, physical properties, and kink / re-kink resistance of Comparative Examples A, B, F, and G 0 02159 0.01369 0.01369 0.0144 0.0152 0 0154 Layer thickness A = inside B two inside A = outside (cm) 0.02540 0.03424 | 0.03795 0.0316 0 0316 0.0266 0.01715 1 i 0 01433 0.01058 1 0.0094 i 0 0117 1 | 0.0133 | Example 42-44 / VB /A=Sui.lynrM 100/0/0 34/40/27 1 22/55/23 | 22/61/17 100/0/0 26/57/17 | 26 / S4 / 20 1 28/48/24 0/100/0 1 relative layer thickness Α / Β / Λ 0.300 / 0.191 0.409 / 0.282 0.404 / 0.279 [0 404 / 0.279 ^ 0.358 / 0.267 1 0.411 / 0.300 0 401 / 0.284 0.41 1/0 300 0.41 1 / 0.310 0D / ID (cm) 2 66 3.59 to o 3.57 L_M6_I J [4 12 1652 / EVA / Suiiyn ™ 1652 〇, load at 50% strain o '^ r \ 〇O' 00 Stress at 50% strain 45.0 1 'One J 00 oo -P ^ o 〇〇to GO 〇 \ Bu J o Young's modulus 〇〇Os from 50% strain return to the stun 2.3 / 2 0 2.3 / 1.9 2.4 / 1.9 I 1.6 / < 1 , 2 1 2 0 / < l, 2 2.1 / <]. 2 I 2.0 / 1.7 1'6 / < 1.2 2.5 / 2.1 Kink / Kink (please read the notes on the back before filling this page) _ -73- This paper scale is applicable to China National Standard (CNS) A4 specification (210X297mm) A7 B7 5 Description of the invention (71) Comparative example printed by the Employee Consumer Cooperative of the Central Standardization Bureau of the Ministry of Economic Affairs S 0/100/0 0.411 / 0.279 4.84 7.09 1 51 A / BM = sul.lynHM ls2 / Kl.aion ™ K2701 / surlynHM 1652 Comparative example 0 Comparative Example R 100/0/0 0/100/0 0.358 / 0.267 0.411 / 0.279 3.57 3.69 * Ό 74.9 + private Mt Tellurium 50 A / B / > sul.lyn ™ Is2 / Exact ™ 4s4 / suliynH2: l 652 Comparative Example Q ο 100/0/0 15/70/15 | 0.414 / 0.325 | 2.83 4 ^ | 46.5, f 窆 49 A / B / > = sul.lynHM 9so / EVA / surlyllHM 9020

Comparative Example P 00 Comparative Example B (EVA) 100/0/0 0/100/0 0.318 / 0.216 0.424 / 0.376 —4.73… 12.1 15.4 136.9 156.0 18.6 1.6 / < 1.2 • f 窆 48 > / B / > = suliyn ™ 16olB / EVA / sullynH <: l60lB η 3 ^ ζ_ >; ss} relative layer thickness A / B / A (° /.) 0.411 / 0.310 OD / 1D (cm :) ΚΜ load at 50% strain 〇 \ 00 Stress at 50% strain NJ 〇4 ^ Young's modulus 1: 2: 5/2: Factory — Kink / Re-Kink '^ TT-t ^' ^ lx II ⑴. Os ^ -Kr- '# ^ #, 运 71 苗. ^ / # 苗. ^-} £?' | · ^ (Please read the precautions on the back before filling in this page) 袈 、 \ '3 This paper size is applicable to China National Standard ( CNS) A4 specification (210 X 297 mm) -74- A7

B V. Description of invention (72) Employee's consumer cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs, du-printed watch 18 Example 52-55 Three-layer pipe fittings extrusion conditions (inner = inner layer: 1 = inner layer: 0 = outer layer) Example No. 52 53 54 55 Layer: Internal I / O Internal I / O Internal I / O Internal I / O Material:% VA EVA 28/31 EMAZ EVA 28/3 1 EMAA EVA 28/31 EMAA EVA 28/31 EMAA Extruder cylinder: (cm) 2.5 1.3 2.5 1.3 2.5 1.3 2.5 1.3 Section 丨 Temperature (° C) 172 168 172 168 172 168 172 168 Section 2 temperature fC) 177 169 177 169 177 169 177 169 Section 3 Temperature (X :) 177 174 177 174 177 174 177 174 Section 4CLP temperature (JC) 179 179 179 179 179 179 179 179 179 Melting tube temperature (° C) 182 182 182 192 182 182 182 182 Hole mold temperature fC) 182 182 182 182 182 182 182 182 RPM 14.4 6.6 19.4 13.2 14.0 8.0 14.0 6.6 Melting temperature (X :) 181 165 181 166 179 166 181 166 reputation (Mpa) 8.3- 8.8 2.7-2.8 12.6 1.5-2.1 9.0 1.7 8.3- 8.8 1.4 Amps 1.9 2.1 2.0 0.5 2.0 1.5 1.9 1.2 Internal air pressure (centimeter h2o) Xie Moxuan empty slot poplar: Glue pressure (centimeter h2o) 20 20 20 20 20 20 Water temperature (X :) 14 14 14 14 Puller: speed (cm / min) 293 293 366 366 320 320 320 293 293 (please read the precautions on the back before filling this page), va -75- This paper size is applicable China National Standard (CNS) A4 Specification (210X 297mm) A7

7 B V. Description of Invention (73) Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs

Table 19 Extruder conditions for three-layer pipe fittings of examples 56-58 (A = outer layer: B second inner layer: C = inner layer) Example number 56 57 58 layer: AB c AB c AB c | Material:% VA EMAA EVA 2S / 31 EVA 12.5 EMAA EVA 2H / 31 EVA 6 EMAA EVA 28/31 EVA 6 Extruder cylinder: (cm) 1.3 2.5 1.9 13 2.5 1.9 1.3 2.5 19 Zone 1 temperature (X) 168 172 168 168 172 168 168 172 168 | Zone 2 temperature (° c) 181 177 177 181 177 177 181 177 177 Zone 3 temperature (X) 174 177 179 174 177 179 174 177 179 Zone 4 CLP temperature ('Ο 179 179 191 179 179 191 179 179 191 I & C temperature 182 182 182 182 182 182 182 182 182 182 Hole mold temperature ('C) 182 182 182 182 182 182 182 182 182 RPM 4.5 17.5 3 0 4.5 20.1 3.0 4.5 3 0! Melting temperature rc) 166 180 ΝΑ 166 180! NA 166 180 NA! Pressure (Mpa) 1.6 10.3 ΝΑ 16 11.7 1 NA 16 NA Amps 1.5 2.0 2.5 15 2.3, 2.5 1.5 2.5 Puller: speed (cm / min) 366 366 366 1! I (Please read the precautions on the back before filling this page-76- Wood paper size is applicable to China National Standard (CNS) A4 specification (210X251 7mm) A7 B7 V. Description of invention (74) Printed table of the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 20 Examples 59-69 Three-layer pipe fitting extrusion conditions (A = outer layer: B = inner layer: C == Inner layer) Example number 59 60 61 layer: AB c AB c AB c Material:% VA EMAA EVA 28/31 EMAZ EMAA EVA 2S / 31 EMAZ EMAA EVA 2K / 3i EMAZ Extruder cylinder (cm) 1.3 2 5 1.9 1.3 2.5 1.9 1.3 2.5 19 Zone 1 temperature (`` C) 168 172 168 168 172 168 168 172 168 Zone 2 temperature (" C) 182 177 177 182 177 177 182 177 177 Zone 3 temperature (nc) 174 ΊΊΊ 179 174 177 179 174 177 179 Section 4 CLP temperature Γ. ) 179 180 191 179 180 191 179 180 191: melting tube temperature C'c) 182 182 182 182 182 182 182 182 182 hole die temperature re) 182 182 182 182 182 182 182 182 182 RPM 3 6 118 4.0 4.6 16.4 3.5 9.7 15.8 4 5 Melting temperature re) 166 198 ΝΑ 166 197 NA 166 197 NA Pressure (Mpa) 0.3 7.9- ΝΑ 0-0.1 9.7 NA 0.8 9.0- NA 8.1 9.7 Amps 1.0 1.8 2.0 1.2 2.0 2.0 1.5 1.8 2.1; internal air pressure ( Cm2) 1.3 1.3 13 10.9 10 9 10 9 5.3 5.3 5.3! Empty tank: Glue pressure (cm H2〇) 20 20 20 41 41 41 20 20 20 Water temperature fC) 10 10 10 10 10 10 10 10 10: Puller: Speed (cm / min) 396 396 3% 360 360 360 366 366 366 (please read the notes on the back before filling this page)

定 -77-This paper scale is applicable to the Chinese National Standard Falcon (CNS) A4 specification (21CX2Q7, the Ministry of Economic Affairs, Central Standard Falcon Bureau employee consumption cooperative printed A7 B7 V. Invention description (75) Table 2〇 (continued) Example 59- 69 Extruder conditions for three-layer pipe fittings (A = outer layer: B = inner layer: C = inner layer) Example number 62 63 64 layer: AB c AB c AB c Material:% VA EMAA EVA 2H / 3 1 EMAZ EMAA EVA 28/31 EMAZ EMAA EVA 2S / 31 EMAZ Extruder round: (cm) 13 2.5 1.9 13 2.5 1.9 13 2.5 19 Section & Temperature (" C) 168 172 168 168 172 168 168 172 168 Section 2 Temperature (C) 182 177 177 182 177 177 182 177 177 Zone 3 temperature (X) 174 111 179 174 177 179 174 177 179 Zone 4 CLP temperature (X) 179 180 191 179 180 191 179 180 191 Melting tube temperature (_x :) 182 182 182 182 182 182 182 182 182: Hole mold temperature (C) 182 182 182 182 182 182 182 182 182 RPM 8 9 16.0 7.5 4 5 15.3 2.8 4.6 13.6 4.0 Melting temperature fC) 166 181 ΝΑ 166 179 NA 166 182 NA Pressure (Mpa) 0.9 9.2 ΝΑ 0.3 9 0 NA 0.4 9 2 NA Amps 1.8 18 3 0 0 4 1.8 1.0 10 1.8 2 0 Internal air pressure (Cm h2o)) 8.4 8.4 8 4 303.0 3 0 1. j > i L, 13 empty tank barrel: Glue pressure (cm h2o) 20 20 20 20 20! 20 i;; Water temperature (C) 10 10 10 10 10 10 10 10 10 Puller:; Speed (cm / min) 412 412 412 393 393 393 393 393 393 i!. Clothing ,! (Please read the precautions on the back before filling in this page) -78- This paper scale is applicable to the Chinese National Standard (CNS) A4 pile (210X 297mm) V. Description of invention (76) A7 B7 Central Standard Falcon Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative Printed Table 20 (continued) Example 5 9-69 three-layer pipe fittings extrusion conditions (A = outer layer: B = inner layer: C: = inner layer) Example number 65 66 67 layer: ABCAB c AB c Material:% VA EMAA EVA 28/3 1 EMA2 EMAA EVA 2X / 31 EiMAZ EMAA EVA 2S / 34 EMAZ Extruder cylinder: (cm) 1.3 2.5 1.9 13 2.5 1.9 1.3 2.5 1 9 Section 丨 Temperature (° c ) 168 172 168 168 172 168 168 172 168 Zone 2 temperature fC) 181 177 177 181 177 177 181 177 177 Zone 3 temperature (° C) 174 177 179 174 177 179 174 177 179 Zone 4 CLP temperature ('Ο 179 179 191 179 179 191 179 179 191 Melting tube temperature (° C) 182 182 182 182 182 182 182 182 182 Hole die temperature (X :) 182 182 182 182 [82 182 182 182 182 182 RPM 4.3 16.5 2.9 6 5 14.0 3.9 9.2 11.1 5.1 丨 Melting temperature (" c) 166 182 NA 166 182 NA 166 182 NA Pressure (Mpa) 0.3 9.7- NA 0.1 8.3 NA 0.3- 7.6- NA 10.3 0.4 8 3 Amps 1.0 2 0 1.5 12 2.0 1.7 1.4 1.4 1.9 丨 Internal air pressure: (cm h2o) 2.3- 2.3 2.3 2.3 2.3 1.3 13 13 | Slotted barrel: 丨 Glue force (cm h2o) 20 20 20 20 20 20 20 20 20 i Water temperature (C) 10 10 10 10 10 10 10 10 10 Puller: Speed (cm / min) 381 381 381 381 381 381 (Please read the notes on the back first (Fill in this page again) -3 -79- This paper is applicable to China National Standard (CNS) A4 (210X297mm) A7

7 B V. Description of Invention (77) Printed List of Employees ’Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 20 (Continued) Examples 59-69 Three-layer Pipe Fitting Extruder Conditions (A 2 Outer Layer: Inner Layer: C = Inner Layer) Example No. 68 69 layers: ABCABC Material:% VA EMAA EVA 28/31 EMAZ EMAZ EVA 28/31 EMAA Extruder cylinder (cm): 1.3 2.5 1.9 1.3 2.5 1.9 Zone 1 temperature fc) 168 172 168 168 172 168 zone Section 2 temperature (X :) 181 177 177 179 177 169 Section 3 temperature (Ό) 174 ΊΊΊ 179 182 177 174 Section 4 CLP temperature (° C) 179 179 191 179 179 Melting tube temperature (° C) 182 182 182 182 182 182 Hole mold temperature (° c) 182 182 182 182 182 182 RPM 9.2 20.0 5.2 19.0 13.1 13.4 Melting temperature (° c) 166 182 ΝΑ ΝΑ 179 166! Pressure (Mpa) 0.3-0.4 11.0 ΝΑ ΝΑ 7.9-8.4 2.4 Ampa 1.4 2.0 1.9 1.5 1.8 1.8 Internal air pressure (cm2o) 1.3 1.3 1.3 3.0 3.0 3.0! Empty tank: glue pressure (cm2o) 20 20 20 Water temperature (V) 10 10 10 Puller: speed (cm / Minutes) 488 I 488 488 427 427 427 -80- This paper size is suitable for Chinese national falcon CNS) A4 specification (210X297 mm) -I-ί ^ — ^ i ϊ ^ — ·-— ^ ϋ-I I- ^ fm fm -1-1-- --J,. ^, Va (please Read the precautions on the back and then fill out this page) A7 V. Description of invention (78) Printed form of the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 21 Examples 52, 55 and 59-68 Inner and inner layers of three-layer pipe fittings , The average thickness of the header layer, and examples of resistance to kinking / re-kinking. Inner layer inner layer outer layer kinking / re-kinking layer thickness (only) Thickness U) Thickness U) Thickness (/ -0 52 28 412 38 478 1.5 / < 1.2 55 30 412 30 472 1.9 / < 1.2 59 259 241 31 541 1.8 / < 1.2 60 178 462 31 671 2.0 / < 1.2 61 279 442 61 782 2.2K1.2 62 389 340 61 790 2.0 / < 1.2 63 130 330 71 531 < 1.2 / < 1.2 64 211 361 30 602 1.5 / < 1.2 65 140 381 41 562 66 201 361 30 592 67 180 259 41 480 68 109 389 41 539 (please read the notes on the back first Please fill in the matter again -81-This paper scale is applicable to China National Standard (CNS) A4 regulations, grid (2lOx 297 g) A7 B7 V. Description of invention (79) Table 22 Examples 7, 10 and 1 8 Examples of extraction results of three-layer (ΑΒΑ) fittings and controls Extract fluid Zinc (μg / ml) Sodium (μg / ml) Control «Sugar 0.7 7 Glucose 19.4 Control saline < 0.020 10 Brine 9.0 18 Brine <; 0.020 control fat anti-liquification solution 0.090 10 fat'liquification solution 12.3 (please read the precautions on the back before filling out this page, -α printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The description of the optimal weight fraction, processing conditions and product usage method, but the scope of the present invention is not limited to or by this. Various modifications and changes to the present invention are obvious to those skilled in the art without departing from the scope and spirit of the present invention. 3 The examples described in this application illustrate changes to the polymer materials in multilayer pipes and films The quantity and type are the possibilities to achieve the desired properties for a specific purpose. It is not meant as a limitation of the invention. Therefore, in order to understand the scope of the present invention, reference should be made to the following patent application scope. -82-This paper scale applies to China National Standard Mushroom (CNS) A4 specification (210X29 · 7mm)

Claims (1)

AS 38 C8 D8 a Nien 06_Bi You 554 Patent Application Chinese Amendment of Patent Scope (October 85) 6. Patent Scope Office 【卩: ι · A multilayer with tube holes and inside and outside surfaces A tube, which includes · a) at least one inner layer, formed of at least one gas-free first thermoplastic polymer having flexibility that is similar to or greater than that of polyethylene gas medical tubes, wherein the first thermoplastic polymer The system is selected from polymers including C2 to C4 monounsaturated olefinic hydrocarbons, at least 50% of the homologues of C2 to C4 monounsaturated hydrocarbons and less than 50% of C4 to C14 hydrocarbons, at least 50% Copolymers of C2 to C4 monounsaturated associative hydrocarbons and less than 50% substituted C2 to C6 monounsaturated associative smoke; and b) to > outer surface layers consisting of at least one physical property that does not contain gas The second thermoplastic polymer is formed with a Young's modulus no greater than fifteen times the Young's modulus of the first thermoplastic polymer. The second thermoplastic polymer system is selected from Allied associative hydrocarbons, olefin-substituted hydrocarbon copolymers, polyurethanes "Polyethers and polyesters" 2. According to the multi-layer tube in the first patent application, the Young's modulus of the second thermoplastic polymer is 1 and 7 of the Young's modulus of the first thermoplastic polymer Between times. 3. The multi-layer tube according to item 1 of the patent application scope, in which the flexibility of the first thermoplastic polymer is measured by the Young's modulus in the range of 2 to 60 million Pascal's, and of which the second The Young's modulus of this thermoplastic polymer is in the range of 15 to 300 million Pascals. 4. The multi-layer tube according to item 1 of the patent application scope, in which the kink-resistance resistance of the pipe fitting is within the range of greater than or equal to 丨 8, which is borrowed from Kink-0-Meter (Kink-0-Meter) Test metrics. This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X297 Gongchu) • -I -II 1 _ (please read the notes on the back and then fill in this page) • -installed by the Central Bureau of Economics of the Ministry of Economic Affairs Cooperative printing Scope of patent application A8 B8 C8 Du-printed by consumer cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Multilayer pipe according to item i of the scope of patent application, where the pipe fitting has a flexibility that is greater than or greater than that of polyethylene gas medical fittings, Young's modulus In the range of 15 to 60 million Pascal, and the wear resistance is simulated or greater than polyethylene gas medical tubing. 6. The multilayer pipe according to item 1 of the patent application scope, in which the pipe fitting has substantially complete resilience and substantially no wall damage during the entire compression test according to the clamping test for at least 24 hours. 7. The multi-layer tube according to item 1 of the patent application scope, wherein the tube has at least two layers 'these layers are at least the outer surface layer, the inner layer and the inner surface layer' consisting of at least one tough, gas-free third thermoplastic polymer The body formed has a Young's modulus between 1 and 15 times that of the second thermoplastic polymer. 8_ The multilayer pipe according to item 1 of the patent application scope, wherein the pipe member has only two layers, wherein the inner layer forms the inner surface of the pipe member. 9. The multilayer pipe according to item 1 of the patent application scope, wherein the first thermoplastic polymerization system is selected from the group consisting of copolymers of ethylene and vinyl acetate, copolymers of ethylene and butyl acetate, copolymers of ethylene and butene, and Copolymer of ethylene and octene; the second thermoplastic polymerization system is selected from the group consisting of ethylene-methacrylic acid copolymers with zinc ion bonding and propylene-methyl acrylic acid copolymers with zinc ion bonding. 、 Acrylic-methacrylic acid copolymer with ionic bond of sodium, Acrylic-methacrylic acid copolymer with ionic bond of sodium, Copolymer of ethylene and butene, Ethylene and propylene Acid copolymers, copolymers of ethylene and vinyl acetate, copolymers of ethylene and n-butyl propionate, copolymers of ethylene and methacrylic acid Dong's Zhang scale is applicable to China National Standard (CNS) Λ4 specifications (210x297mm) —11-1-1-i: ΙΊ I _ I-.----(Shi Xianmin read the notes on the back and fill in this page) A8 B8 C8 αΆpatent range 1 — -And polyethylene, and if a third thermoplastic polymer is present, the Vinyl-methacrylic acid copolymer with zinc, ionic bond propylene · methacrylic acid copolymer with zinc, ionic bond ethylene · methacrylic acid copolymer with sodium, with sodium Ion-bonded propylene-methyl propionic acid copolymer, ethylene and butene copolymer, ethylene and acrylic acid copolymer, ethylene and vinyl acetate copolymer, ethylene and acrylic acid n-butyl acetate Copolymers and copolymers of ethylene and methacrylic acid. 10. The multi-layer tube according to item i of the scope of the patent application, which further includes' stretching the multi-layer tube after co-extrusion to orient the tube layer. In-I 1 m In m In I-II · n 1— ^ i 1 ·-— ^ ϋ I -I {n »IJ M " * T-(please read first (The precautions on the back of vg should be filled in here.) 11. A method for manufacturing a multilayer tube having a tube hole, an outside and an inside surface, and a pipe wall including at least one inside and outside surface layer. The method includes: At least one flexible and gas-free first thermoplastic polymer in the inner layer, accompanied by at least one tough and gas-free second thermoplastic polymer in the outer surface layer, where the pressure and heat Co-extrusion conditions will cause the thermoplastic polymer to become a melt, where the first thermoplastic polymerization system is selected from polymers including C2 to C4 monounsaturated olefinic hydrocarbons, at least 50% C2 to C4 monounsaturated olefinic Copolymers of hydrocarbons and less than 50% C4 to C14 olefinic hydrocarbons, copolymers of at least 50% C2 to C4 monounsaturated hydrocarbons and less than 50% substituted C2 to C6 monounsaturated olefinic hydrocarbons, which Have the flexibility of simulating or greater than polyethylene gas medical tubing, and the second heat The sexual polymerization system is selected from polyolefins, cross-linked polyolefins, olefin-substituted olefin copolymers, polyurethanes, polyethers and polyesters, and has a Young's modulus not greater than that of the first thermoplastic polymer Fifteen times' then multi-layer tubes are provided. This paper scale is applicable to the Chinese National Standard (CNS) Μ specifications (21〇 '乂 29 < 7mm > Λ8 B8 C8 D8 2969 ^ 5 ------ VI. The scope of patent application is based on the patent application. ; ^ Item method, in which the second thermoplastic · -1. ^ Ϋ—-mm ^ i 1-li 11 HI mimn ^ i mu- · I -¾-a _ .. (please read the notes on the back first (Fill in this page again) The Young's modulus of the polymer is between 1 and 7 times the Young's modulus of the first thermoplastic polymer. 13 · Root: The method of applying for patent scope item 11, of which the first The flexibility of a thermoplastic polymer is measured by the Young's modulus in the range of 2 to 60 million Pascals, and the Young's modulus of the second thermoplastic polymer is 1 :: In the range of 300 million Pascals. Η. According to the method of item n in the scope of the patent application, the resistance to kinking of the pipe fittings _ kinking resistance is within the range of greater than or equal to 18, which is by kinking Meter (Kink-0-Meter) test metric. 15. According to the method of item 11 of the patent application scope, wherein the pipe fitting has a flexibility that simulates or is greater than that of polyethylene gas medical fittings, Young's modulus is in the range of 15 to 60 million Pascals, and the wear resistance is simulated or greater than polyethylene gas medical fittings. 16_ According to the method of item 11 of the patent application scope, where the fittings are based on During the compression test for at least 24 hours during the husband-and-dwelling test, it is basically fully resilient and substantially wall-free. Printed by the Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs 17_ According to the method of item 11 of the patent application scope, Wherein the pipe has at least two layers' these layers are at least the outer surface layer, the inner layer and the inner surface layer 'formed of at least one tough, gas-free third thermoplastic polymer' which has a Young's modulus as the second Between 1 and 15 times of a thermoplastic polymer. 18. According to the method of claim 11 of the patent application scope, wherein the pipe has only two layers, wherein the inner layer forms the inner surface of the pipe. Home County (CNS) Λ4 · (21 ()) ^ 97 Gongchu) AS 38 C8 D8 々, patent application scope 19. The method according to item 11 of the patent application scope, in which the first thermoplastic polymerization system is selected from Copolymers of olefin and vinyl acetate, copolymers of ethylene and butyl acetate, copolymers of ethylene and butene, and copolymers of ene and octene; the second thermoplastic polymerization system is selected from the group consisting of ionic bonding with zinc Ethylene-methacrylic acid copolymer, ionic bond propylene-methacrylic acid copolymer with zinc, ionic bond ethylene-methacrylic acid copolymer with sodium, with sodium Ion-bonded acrylic resin_ Methacrylic acid copolymer, copolymer of ethylene and butylene, copolymer of ethylene and acrylic acid, copolymer of ethylene and vinyl acetate, ethylene and acrylic acid Copolymer of n-butyl acetate, copolymer of ethylene glycol and methacrylic acid, and polyethylene, and if a third thermoplastic polymer is present, it is an ethylene-methacrylic acid copolymer with zinc and zinc Ion-bonded propylene-methacrylic acid copolymer, ion-bonded ethylene-methacrylic acid copolymer with sodium, ion-bonded propylene-methacrylic acid copolymer with sodium, ethylene Copolymer with butene, copolymer of ethylene and acrylic acid, ethylene Xi acetate copolymers of vinyl acetate, ethylene acrylic acid and copolymers of n-butyl _ and of ethylene and methacrylic acid. Printed by the Central Ministry of Economic Affairs Employee Consumer Cooperatives ---- j ----- installed-I (Please read the notes on the back and then fill out this page) 20. According to item 11 of the scope of patent application The method further includes, after co-molding, stretching the multilayer tube to orient the tube layer. -5-Applicable to China National Standard (CNS) A4 specification (210X297 male stem)